Dyson - Purifier Cool Formaldehyde TP09

I’ve been quite happy with my Dyson air purifier. My sensitiveness to air quality and dust has significantly gotten better. My sneezes gone completely which was quite sensitive before purchasing the purifier. However, not a very long time user, hardly 6 months.

Dyson Purifier Cool Formaldehyde purifying fan - the one compatible with the mobile app.

Just bought a Winix Zero S and really working wonders! It stopped most of my dust-related morning allergy. Would 100% recommend for the price. I know I’m gonna get flamed for this but my Dyson TP09 does an okay job too in my office. Just takes longer to clean the room (and it’s more noisy). At least it clears the high levels of formaldehyde that my office seems to have. (With severe allergies stay away from Dyson though)

My Winix Zero S has made wonders for my stuffy nose. I used to wake up and spend the morning blowing my nose. Now I’ll just do it after waking up and be good for the rest of the day (most of the time). The important thing is you have it running at full speed at least 30m before you enter your bedroom, then you can switch it to lower levels for the night. I have a Dyson TP09 running in my office as well, that might be helping too (this one starts running at full speed 2h prior to my arrival to the office, since it’s a big room with high ceilings).

I have a Dyson tp09 and a Winix Zero S. The Winix destroys the Dyson in every aspect. The only thing the Dyson has over the Winix is the fancy meters and cool app. If you are still gonna go for a Dyson I can sell you mine for cheaper (so that I can go buy more Winix purifiers).

I have a few Dyson TP09. They provide a ton of sensors and have their own MQTT Broker, so the integration into HA is trivial. https://preview.redd.it/mdzyccjlu54f1.jpeg?width=1440&format=pjpg&auto=webp&s=7e0a42aafeeabbb0fa290cb61db2f1532fd8c3a4 These are some of the entities it provides (except the CO sensor)

Look for true HEPA filtration, and formaldehyde filtration. Dyson TP09 or HP09 are amazing, as is their BEAST the new Big+Quiet Formaldehyde purifier. These are very well made and designed purifiers with a true commitment to air quality. Some of these purifiers end up making things worse.

If you are careful when emptying this is basically a non issue. And bags are wasteful and increase cost of ownership. Dyson monster ball 2 owner here, love it and its HEPA filter. Also, have several tp09 air purifiers (HEPA and also formaldehyde capturing) and they are amazing.

Tp09 in our kitchen, works amazing

My cat and I are both asthmatic and allergic fo dust. Neither of us have had asthma since I brought a Dyson tp109 about 2-3 years ago. I consider that to be a success.

If you looking for filter out dust you need the one has big and powerful fan but if you need one to filter out VOC and a microscopic stuff you better of looking for multi layer filter system with HEPA , I have used Coway for dust and Dyson formaldehyde for microscopic and IQAIR multigas for road traffic pollution next to my apartment!

There is truly no "one and done" air purifier for dust, as dust is too heavy to be pulled by typical air purifiers. The Dyson formaldehyde air purifier attempts to solve this issue, but directing air at stagnat pockets within a room to encourage dusty air to make it way towards the filter intake. That'll most likely be your best bet against dust if you don't want to manually remove it, ie vacuum, brush, etc etc.

Been using hot+cool since a few years and it makes my room so warm and toasty in winters.

I changed my filter after 2 years so I don’t agree with this. The technician just cleaned it and told me it isn’t as bad and I should continue using it.

**The Good** * **Longevity**"My Dyson fan/air purifier has been going strong for 10 years and it runs all the time." *(13 upvotes)* * **Quiet Operation**"Fan speed 1 is inaudible which is a shock to me. You can control it from the app and it even tells you the filter life as a percentage." *(14 upvotes)* * **Health Benefits**"I don't wake up super stuffy as I used to, less sneezing and wheezing. When you see the filter, you will see just how much nastiness collects in there." *(19 upvotes)* * **Heating Function**"Haven't tried the purifier, but the hot+cool works great. Mostly used the hot-function on cold days and it heats the room incredibly fast with low energy-consumption." *(16 upvotes)* **The Not So Good** * **Quality Concerns**"Anything Dyson is absolute garbage." *(26 upvotes)*"Yeah, I thought Dyson anything was a known brand to avoid." *(16 upvotes)* * **Poor Value for Price**"I kinda want one. I don’t want one for $950, want one." *(14 upvotes)* * **Filter Replacement Costs** Many users noted the ongoing expense of replacing filters. * **Reliability Issues**"Over the last 5 years Dyson has had a monumental fall off a cliff. Check out the horror stories on r/dyson. Literal thievery and extortion." *(26 upvotes)* * **Effectiveness Questions** Some users questioned whether Dyson purifiers improve air quality enough to justify the cost. **Comparison to Alternatives** * **Preferred Brands**"Some WAY better alternatives: \[...\] Air purifiers: Alen." *(26 upvotes)* * **User Rankings**"'Best purifiers' 1. Blue Air 2. Germ Guardian 3. DIY (Box fan + filter) 4. Honeywell 5. Dyson 6. [Levoit](https://go.shopmy.us/p-33552697)." *(12 upvotes)* * **Expert Opinion**"[Blue Air](https://go.shopmy.us/p-33552493). My wife suffers from airborne allergies, and these air purifiers practically eliminated her allergy episodes at home." *(44 upvotes)* * **DIY Options** Several users recommended simple box fan + filter setups as cost-effective alternatives. **Tips and Tricks** * **Remote Replacement**"You can download the Dyson app and use your phone as the remote! Might not be compatible with all models though." *(97 upvotes)* * **Filter Maintenance**"Order and install new filters!" *(415 upvotes)* * **Filter Inspection**"You may be surprised if you compare those filters to actual new ones… I thought they were fine, but compared to new ones they definitely weren't." *(41 upvotes)* * **Thrift Shopping Strategy**"I find the trick is to go every day! I have 4 thrift stores within a 5-mile radius of my work. On lunch, I hit one of the 4." *(128 upvotes)* **The Verdict** Reddit users are divided on [Dyson air purifiers](https://go.shopmy.us/p-33552975). Some praise their longevity, quiet operation, and health benefits, while others criticize high cost, brand reputation, and questionable value compared to alternatives. The consensus suggests that Dyson purifiers work, but more affordable brands such as [Blue Air](https://go.shopmy.us/p-33552493), [Coway](https://go.shopmy.us/p-33553147), and [Levoit](https://go.shopmy.us/p-33552697) offer similar or better performance at lower prices. For those committed to Dyson, thrift stores are a popular source for substantial discounts. Across discussions, the most common advice is to prioritize **true HEPA filtration and sufficient airflow** rather than brand prestige or extra features.

I’ve got both a breville (for a medium sized room, cost about $100) and a Dyson hot+cool with purification ($545 on sale at JB now) and both are great and non-wifi!