Choosing

What is CADR and why is it the only data I would look at when choosing an allergy device?

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Spring brings out many things and some are not pleasant at all. Allergies to pollen and many other particles attack us and can give us a hard time. Of everything we can buy to combat them at home, the most effective and useful is, without a doubt, purchasing a air purifier. But, How to choose the most suitable one for your home? That is the question I have been asking myself in recent days, since all the purifiers I have seen have a gibberish of figures and data that, paradoxically, can confuse more than help us choose. After doing a little research, it is clear to me that, if I have to focus on something, it would be in the CADR. I’ll explain why. Philips 2200 Series Air Purifier, HEPA NanoProtect + Active Carbon Filter, CADR 400m³/h for 104m², Allergy Friendly, Ultra Quiet, Smart and Durable Filter (AC2210/10) The price could vary. We earn commission from these links What is CADR and why does it matter so much? If we enter a store like Amazon and look for any air purifier (like this one from Philipsfor example), right from the start we are going to be inundated with a lot of information. Perhaps what may catch our attention most at first is that it is capable of eliminating 99.97% of the particles in the air, a very high figure. What’s happening? We will find this in most purifiers and it is not the most important thing. That’s where the CADR comes in. The CADR (clean Air Delivery Rate or Clean Air Delivery Rate in Spanish) is a unit of measurement that tells us, in a few words, the amount of filtered air that a purifier can deliver. A purifier that has the best filter on the market is fine, but is it any good if it is not capable of moving air and filtering it fast enough? Because if you don’t, the pollen or dust particles will end up settling on the furniture and will not be filtered. The CADR has a numerical value that is calculated with two aspects: how many particles the filter is capable of trapping and how much air the purifier is able to move through said filter. No matter how good the filter is, it is equally important that the purifier is able to move through it, since otherwise it will not trap dust or pollen particles well and they will continue to swarm around our room. Bad thing for our allergies. Small note that must be taken into account. The CADR is not just a single value, but there are three. This happens because purifiers have a CADR for pollen, but also for dust and smoke. This is important, since what we should focus on is pollen. The others are more secondary. Falling short of CADR is always a bad idea If we go back to the Philips purifier above, we can see how it is, in theory, ideal for rooms up to 44 square meters in less than 17 minutes. Now, you have to read the fine print on the device’s own page on Amazon: It is a theoretical one-time cleaning time calculated by dividing your CADR of 170 cubic meters/hour by the room size of 48 square meters (assuming the room is 20 meters in area and 2.4 meters in height). Why do I say this? Because although the description of a purifier indicates that it is optimal for a room of a certain size, they are always references taken under certain conditions. that may not fit with our home. The ideal is to take the CADR of the purifier and make a simple calculation that will not lead to errors. This calculation is done in three phases that I summarize below: First, we need to know the cubic meters that has the room where you are going to use the purifier. It is calculated by multiplying length, width and height. Second, we need to know how many times you want the purifier to clean the air. The AHAM (Association of Home Appliance Manufacturers) recommends between 5 and 8 per hour. To finish, we multiply the volume of the room in cubic meters and the air changes per hour that we want. Quick example. If you have a room with a volume of 25 cubic meters (because it is 4 meters long, 2.5 meters wide and 2.5 meters high) and you want the purifier to renew the air 5 times per hour, the ideal is that you look for an air purifier with a CADR of at least 125 cubic meters/hour. Be careful here, because many purifiers give you this information in cubic feet per minute (CFM), which is the original AHAM standard. Now, does it make sense to buy a purifier with a much higher CADR than what you need? If you opt for this scenario, you will have a device that filters the air in your room faster and even without the motor running at full speed all the time (which means less consumption and less noise). The issue here is that a higher CADR also usually means, in the vast majority of cases, paying more for the air purifier. The choice here is up to each user, but with one thing clear: never fall short of CADR. The good and the bad of both options, face to face low or medium frame tall frame THE GOOD 🟢 Cheaper and enough for small rooms like a bedroom Ideal for large rooms and for air to filter faster THE BAD 🔴 It may fall short if you move it to a larger location at some point. They are more expensive and it may not be worth spending a lot if your room is small. Ideal for: Tight budgets and small rooms Rooms like a living room or if you are looking for a purifier that does not always work at full capacity In summary: 👉 Choose a low or medium … Read more

choosing the Spotify list well is essential

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When you go running, cycling or simply going to the gym, there are some songs that seem to give us greater energy. And it is not just a subjective sensation, but science has been studying music for years as a tool that improves physical performancealthough without specific data. Now science has detailed exactly how much it can improve in numbers and, above all, where it will end up affecting. An experiment. This is something that researcher Andrew Danso has developed with the help of 29 physically active adults who performed high-intensity cycling sessions at 80% of their maximum power. But the important thing here is that the participants pedaled in two scenarios: in complete silence and listening to the music they had previously chosen with a tempo of between 120 and 140 beats per minute. The results. After being in these two situations, the research indicated that with music the cyclists lasted an average of six minutes longer than those who were completely silent, which represents an increase in resistance of 20%. Although it does not stop there, since, despite pedaling for longer, the heart rate and lactate levels (which determine how demanding the exercise was) at the end were identical to those who had been silent. This means that the feeling of effort was much less because they lasted longer with the same intensity, making the exercise sessions of much higher quality. Because? Here the question is quite clear: How is it possible to perform 20% more without the body paying for it with a higher heart rate? For science, one of the answers lies in cognitive dissociation, since music acts as a barrier that diverts attention from the signals of pain, muscle burning and fatigue that the body sends to the brain. Studies here indicate that this distraction reduces perception of effort by about 12%. But it doesn’t stop there, since by adjusting the rhythm of the exercise, such as pedaling, to the tempo of the music, the movement becomes more efficient, causing less energy to be spent to do the same work because the rhythm acts as a metronome that optimizes the cadence. The importance of the song. A crucial detail of the Finnish study is that the music was chosen by the athletes themselves, since it is not enough to put a generic ‘training music’ playlist on Spotify, but for the effect to be maximum there must be an emotional connection with the song. In addition, very calm music is not useful, but it must have a tempo in the range of 120-140 BPM so that it is a motivating rhythm and easy to synchronize with sports activity. And it is not something new, because already In the past there were studies that pointed to this improvement in performance, although now it goes a little further. Images | freepik In Xataka | In the fever to train strength, the gym has faced competition: more and more people train on the street

Not all of them serve the same purpose, and choosing well matters more than ever.

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Buy a smart watch It may not be as easy as it seems. We begin to review the options on the market and the eternal question arises: which one is the most suitable for us? Which device will be worth the investment? And, precisely, it is at this point where we will try to help you. In a new video from the Xataka YouTube ChannelAna Boria brings the 7 best smart watches of the year. This is a selection that derives directly from the finalists of the Xataka NordVPN 2025 Awards. Our partner gives us key data about each model to help us choose the best option. The seven best smartwatches of 2025 Google Pixel Watch 4. Google watches have evolved significantly in recent years, offering an increasingly solid bet. This generation arrives in identical versions in 45 and 41 mm cases. They also boast a screen AMOLED LTPO between 1 and 60 Hz. And it reaches 3,000 nits of peak brightness. “In terms of measurements, the latest generations of Pixel Watch have improved a lot and in fact it is capable of measuring everything with an acceptable precision for general use and fitness,” says Ana, but in the video published on YouTube she does not hesitate to mention some manufacturers that have more successful products. Xiaomi Watch S4. From the American brand we move on to the Chinese march. Yes, it has a huge product catalog, and that catalog includes smart watches. “The Xiaomi Watch S4, a big 47mm smartwatch and with aluminum frames,” says our colleague, and highlights its interchangeable bezel. Of course, not all are advantages. Like the Pixel, Xiaomi’s proposal also has its negative points. Ana reminds us which ones, which will allow us to continue with the purchase if it is not a priority for us or look for an alternative if not. Of course, the price is a highlight: 160 euros. Amazfit T-Rex 3 Pro. Among the finalists of the Xataka Awards was this proposal, which is available in two sizes (44 and 48 mm). At the display level, an AMOED screen reigns supreme with a peak brightness of 3,000 nits. “ANDIt’s a very sports-oriented watch since you can take it anywhere without anything happening to it,” says Ana. We are looking at a watch focused on sports, offering options not only for health monitoring but also for training performance. In the video that we have just published you will find some features that stand out if you are a user who values ​​sports and are thinking about buying this smart watch. Samsung Galaxy Watch 8. “For this generation, Samsung has released Wear OS 6 with One UI 8 for Watch and has included integration with Google Gemini, which allows us to use voice commands to request information and/or do things on the fly”, details our colleague. Do you want to have AI on your wrist? This may be your option. Garmin Fenix ​​8. Garmin’s journey in smart watches has been very interesting, developing a product as polished as the one we find in this selection. The Garmin Fénix 8 comes in three sizes (43, 47 and 51 mm), incorporates an AMOLED screen and if we must mention a strong point, it is resistance. Of course, Ana says: “The Garmin Fénix 8 is an expensive smartwatch.” And it is, with a recommended retail price of 950 eurosit is a choice that may be outside of some budgets. However, in the video you will find more details so you can evaluate if this watch is really worth the investment for you. Apple Watch Series 11. Among the finalists of this year’s Xataka Awards is Apple’s proposal in second position. It is a watch that has many benefits, many followers, but it is certainly not for everyone. It is available in 42 and 46 mm versions, and there is an option to purchase it with 5G. You may be wondering how it is different from the Apple Watch Series 10. Ana helps us find some differences. In addition, he mentions the important role that the health section occupies: “They place it as one of the best in terms of accuracy on the list“This proposal starts at 449 euros. Huawei Watch GT 6 Pro. At the end of the article, but at the top of the podium is the Huawei Watch GT 6 Pro, winner of the Xataka NordVPN 2025 Awards in the Best smartwatch category. Ana reminds us that, in addition, this product won the community award, the one you chose. “It is a large watch, 46mm, with an AMOLED screen that reaches 3,000 nits of maximum brightness and protected with sapphire crystal“explains Ana, who highlights its benefits in the sections of sport, health and autonomy. She does not miss the price, which starts at 379 euros, but can be obtained with discounts. Images | Xataka In Xataka | Apple Watch SE 3: a fantastic renewal that was worth waiting three years for

Chatgpt now has a “router” that chooses for us what GPT-5 model use. And is choosing the cheapest

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The launch of GPT-5 It has not been up to the expected. Instead of being surprised with the generational jump, too many people have missed GPT-4o warmth. Sam Altman, CEO of OpenAI, anticipated the launch of the New model with the death starbut the Hype It has stayed very far from the moments wow like the Chatgpt images generationthat reached “melter” servers. One of the culprits has a name: “router” or router. What happened. Behind him Model nomenclatures mess of OpenAI (already Remember Xiaom’s mobile messi) and the fact of making the user have to choose which one more, the company chose to launch all (sub) GPT-5 models in a unified way. Now the system would choose the model that estimated the most to resolve the indication. The person in charge of this task is a “router”. This, “quickly decides which model to use based on the type of conversation, complexity, or the need for tools.” The problem is that in these first days, the router usually opts too many times by the basic GPT-5 model, in front of the “Thinking” model or reasoner. What has made the new generation seen as much more silly than Sam Altman came to affirm (he defended it was like have a team of doctors at your disposal). The necessary jump It seemed impossibleand indeed, many users have not felt it. The problem. Openai decides which model is more efficient for the user, but also which model is more efficient for their servers. At the launch of GPT-5, they have not been transparent about what leads them to use one model or another, and users who accuse them of choosing the cheapest model for Save costs. Aidan McLaughlin, employee of Openai, defended in x that prefers GPT-5 without reasoning the majority (65%) of times for how interacts with the user. He assured that they do not use the routing to save costs, but use the one they think is the best model for each consultation, for efficiency. It seemed a successbut it has arrived without complying with what users expect. Altman recognized launch failures. During a question session (AMA) on Reddit held on Friday, Sam Altman read and observed that for many users, GPT-5 did not work as well as 4th. To it He replied That the new model seemed “more silly”, because the router did not work well when they threw it on Thursday. Who warns is not a traitor. On July 19, after announcing great performance in Mathematics OlympiadAltman announced that GPT-5 was just around the corner, in front of images like that of the death star, he was cautious, claiming to want to establish realistic expectations: “This is an experimental model that incorporates new research techniques that we will use in future models” “We believe you will love GPT-5, but we do not plan to launch a model with the gold capacity level of the mathematical Olympiad for many months.” The case remembers Sora’s, who was shown Very green After the Initial announcement promisesor that of O3, which was launched with a performance in benchmarks inferior to the initially promised (Unleashing everything A debate about whether we were already in the AGI). Openai has had to make changes. Before the complaints, from OpenAi they took a great measure: return to the users of the subscription Plus the possibility that the subscribers of the plan (of 20 euros per month) will use 4th again. But, in addition, they have touched the router to better choose the appropriate model to each consultation. Of course, without explaining what leads to use one or the other. The trick (if you pay). When users perceived that the problem of the new chatgpt with GPT-5 was not the model itself, but that the router did not turn to the reasoning model, they launched to look for ways to make GPT-5 Thinking use. The way to do it has been to integrate phrases such as “think about your in -depth response” in the indications, as suggested and demonstrated DOTCSV. In this way, it is achieved that, for Plus users, chatgpt use the Thinking model Without spending the quota of 200 weekly messages Manual mode. This trick does not apply to the free model, which could only activate it without asking for GPT-5 Thinking automatically once a day. Use free reasoning. Another change confirmed by Altman has been to integrate a reasoning button again (hidden) to use the reasoning model in the free version. Trying it, Chatgpt acknowledges using the GPT-5 Thinking Mini model, and we have been able to use it in 10 messages. From there, he used the model without reasoning. Is the successor of O4-miniwhich in April also received for free Reasoning functions With a “Think” button. Result: More use of reasoning. After announcing an increase in reasoning limits, Sam Altman has offered Specific data of the number of users who use reasoning now before the launch, and what indicates is the little that was used before, even among payment users. Free users have gone from less than 1% to 7%, but what the most collides is that those who paid the plus only used 7% reasoning, compared to 24% of now. It surprises in the sense that the reasoning of O1 and O3 supposed one of the great advantages over the free plan, thus the capacities of Deep Research. Image | Xataka In Xataka | Chip restrictions are over to China: now technological war

He is choosing 11 cardinals and the favorite to be a potato

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He Death of a Pope It is more than a political and social event of international interest. It is also a key turning point for popular culture, as demonstrated by the renewed interest in the movie ‘Conclave’ or the birth of ‘Fantapapa‘, a simulation of the Pope’s choice in Fantasy style. That is, an online game in which participants create and manage virtual football teams formed by real players. Only here those who face are the candidates to become a pope. How to be dad. Each player has at his disposal the complete list of cardinals who opt for the papacy, and has to form a team of 11 cardinals. Among them a captain is chosen, who is considered to be the most chance of being chosen. The goalkeeper position is left for those who are believed to have less possibilities. From there, the game gives extra points to the players who hit the name of the new Pope, his order, the number of rounds necessary for the election or the date on which we will see the white smoking. I bet a Pope. From the moment of the death of the Pope, bets have happened around his possible successor. There are two great sides in this fight, traditionalists and progressive. And beyond that, a lot of names that sound in the pools: the Philippine Luis Antonio Taglethe Ghanaian Peter Turkssonthe Portuguese José Tolentino de Mendonçathe Italians Pietro Parolin and Matteo Zuppithe Hungarian Peter Erdothe Dutchman Willem Eijkthe American R. Leo Burkethe German Gerhard Müllerthe Maltese Mario Grech or the Canadian Marc Ouellet. 80,000 tifosi of the Pope. It is the number of people who are playing this title Free and onlinewhich assimilates one of the most eminently Italian passions, football, to give it a turn towards the event of the moment, removing all kinds of solemnity and transcendence. For example, A week ago The game of the game published a top of the candidates most voted by the players as if it were the classification of a football team. And by then, the game only added 30,000 users, before, according to its creators, it arrived A large number of Spanish subscribers. Only fun. Although fantasy type games are often created to promote bets (and although the papal conclave has generated its own phenomenon linked to bets) There are no monetary awards for the winners of ‘Fantapapa’. The creators of the game, an AI expert and a video game developer, put the game standing as An idea for use of friends and familyand went viral thanks to the attention of the media. His inspiration were Italian fantasy games such as ‘Fantacalcio’, about the Soccer League, and ‘Fantasanremo’, on the popular melodic song festival. Custom football. In a country as devout football as Spain, fantasy -like games have been living for years strong predicament. The first outbreak of the genre, and perhaps the eldest that has been lived in the history of these games, was in 2001 with the Fantastic Liga brand, where LaLiga players could be chosen to participate in private leagues. To this first advance of the genre came platforms such as Community or Biwenger (currently The most played fantasy), among otherswhich added elements that sophisticated the game. such as the participation of virtual communities or the inclusion of the transfers market (which granted economic value to players). The controversy of bets. A few years ago We talked How in the United States, Fantasy type games, through platforms such as Draftkings either Fanduelthey were avoiding betting laws, partly perverting the merely playful origins of the fantasy sports in the sixties. That controversy has partially sent thanks to the hardening of online betting laws. Controversies that, in any case, are far from the proposal of ‘Fantapapa’, pure and innocent Rolera fantasy that allows users to experience, strategic code, the dynamics of the papal conclave. In Xataka | The Fantasy Manager of Liverpool, Real Madrid or Naples that are born in Elda (Alicante)

Choosing seat to fly has become a luxury. Now Ryanair has his own subscription to assure you

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Offer the basics to travel. A seat and (for the moment) a hand suitcase. This is how operators have done business Low Cost When it comes to flying. Eliminate everything that the client can consider accessory to lower the basic prices of tickets. For the rest, you have to go through the box. But if you are fed up with all this, Ryanair proposes another option: Subscribe to his flights. A subscription to Ryanair. Ryanair Prime. This is the name of the new service that The company is offering on its website. For 79 euros a year, the Low Cost airline offers you a series of exclusive advantages within its membership: Priority sale on selected flights Exclusive discounts for some flights Free selection for the member and a companion According to the company, if we want to choose a seat every time we travel this subscription, it is profitable from three flights since we would stop paying 105 euros. That is, in case of flying three times the traveler would be saving 26 euros in total. If we fly twelve times, savings can reach 420 euros. The 12 flights. The mention of savings of those 12 flights is not accidental. As read in the Subscription terms and conditionsthe client can choose a seat up to twelve occasions for him and the companion. That is, it is understood that this benefit in the subscription only reaches the first 12 trips of the year. (Lot) small print. When promoting this service, the company has emphasized advantages such as travel insurance to cancel a flight as a result of an injury or disease (excluding COVID-19), the theft of the luggage or the delay of other flights. Of course, it is specified that those over 70 are excluded from disease coverage. It is not the only aspect that attention must be paid since the reserve of seats has its own peculiarities. Yes, it is true that the member can choose free seat for him and the companion but always and when they opt for seats that do not imply an extra cost in their selection. Ryanair points out that, therefore, it is not guaranteed that the member of the subscription and the traveler can travel accompanied by each other since it will depend on the available seats that allow a free change or the random assignment by the company. The seat business. When it comes to eliminating all the accessory of a flight, one of the first spotlights in which Ryanair attention was in the selection of seats. The company, like so many other low cost, knows that the client is willing to pay for them to travel accompanied, to have more leg space or to leave before the plane (choosing the front seats) once he has landed. In 2023, The Telegraph It echoed a study in which the airlines of the seat choice service were specified. According to him, Ryanair was the fifth company that took the most benefit, with 3,280 million pounds a year. But it was the Low Costa company that made the most money in this regard. Keep in mind that Delta (6,550 million pounds), United Airlines ((6,460 million pounds), American Airlines (6,320 million pounds) and Southwest Airlines (4,870 million pounds) offer much longer flights and the cost of choosing a seat is also superior. A seat and nothing more. As you can see in the superior image, Ryanair takes into account various services that are gradually more than the price of the ticket. With the basic rate it is possible to travel for 15 euros in a Madrid-Cagliari, for example, but you will not have the right to choose a seat and will have to adapt to the suitcase for the smallest possible hand luggage. In addition, rates play to offer and remove services to propose the most expensive alternative as the most interesting. Thus, the option Regular It allows to carry a larger cabin in the cabin (up to 10 kg) but this is not available if we want to bill a 20 kg suitc Plus. Nor is the priority shipment available in the latter used by the Regular. The controversy of the suitcase. As we see, the subscription service completely omits the possibility of carrying a hand suitcase on board which, without a doubt, is the company’s last great controversy. In Spain, Low cost have been fined For not allowing the passage with hand suitcases, Ryanair being with a fine of more than 107 million euros the most punished. The company defends itself by ensuring that it does allow access to the aircraft with hand luggage but that this It must be a maximum 40 centimeters high, 20 centimeters wide and 25 centimeters deep. These measures are equivalent to a bag or backpack but the typical troley used on trips is usually larger. In that case, if this last suitcase has not been added when making the reservation and does not enter the measures, The company charges a 46 euros supplement. However, the Ministry of Consumer does not consider that the basic rate contemplates the obligation to allow access to the plane with a hand suitc Insults answered Pablo BustinduyMinister of Consumption, by Michael O’Leary, CEO of Ryanair. But, above all, applying pressure with The exit of airports with lower traffic of the country. Photo | Markus Winkler In Xataka | Spain has tired of Ryanair’s practices. And the airline is going to hit where it hurts the most: the provinces airports

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