I would definitely avoid both Dyson and Shark-Ninja. Dyson has low particulate CADRs and a high price. Shark is mediocre quality and has very little capacity for gases, vapors, or odors.
The Dyson Purifier Cool PC2 De-NOx may be good at reducing NOx and formaldehyde. However I don't know how well it reduces other gases *without* creating problematic unintentional byproducts.
If you have high levels of particulates *and* gases/vapors/odors, you generally need two types of air purifier.
This is because most common purifier brands have very little sorbent media for gases/vapors/odors. Instead, they're designed for particulates.
Heavyweight sorbent media purifiers are very loud, very expensive, and clean the air more slowly than particulates-focused units.
I would strongly recommend having air testing done with gas chromatography–mass spectrometry (GC-MS) analysis. GC-MS would tell you which gaseous species are present.
This is because plain/chemically untreated sorbent media do not have high removal capacities for all gaseous species. Some people have reported problems with plain sorbents, such as "sweet" smell emanating from the purifier or spikes on tVOC monitors despite a reduction in odors.
Unfortunately I don't think you have loads of sorbent media purifier options in Turkey. The only ones may be the IQAir GC and GCX series purifiers. The GCX series purifiers would have the most sorbent media by weight.
# Particulates
I'll recommend particulates purifiers for now.
For rooms measured in meters, Clean Air Delivery Rates (CADRs) should be 4-6 times a room's volume (in m^(3)) where higher pollution levels or people with allergies are present.
Bedroom should have CADRs of 192 - 288 m^(3)/h.
Living room/kitchen area should have CADRs of 288 - 432 m^(3)/h.
For your bedroom, I would recommend either the Philips PureProtect 3200 Series (AC3220/10 model) or the Levoit Vital 200S.
For the living room/kitchen area, I would recommend the Philips PureProtect 3200 Series (AC3220/10 model).
Keep in mind particulate CADRs apply to the highest airflow speed/setting only. Lower settings have lower CADRs, which reduces cleaning effectiveness.
A bit late here, sorry!
We need the ceiling height for room volume to determine Clean Air Delivery Rates (CADRs). Let's assume it's 2.4 meters high.
For rooms measured in meters and persons with asthma/allergies, CADRs should be 4 to 6 times the room's volume in m^(3). 32.4 m^(2) × 2.4 m = 77.76 m^(3). 77.76 m^(3) × 4 to 6 = 312 to 467 m^(3)/h.
You need 312 - 467 m^(3)/h CADRs.
Because you have allergies, asthma, and live near a roadway, it would be best to oversize a bit.
You could go with the [Philips PureProtect 3200 Series Smart Air Purifier](https://www.philips.com.au/c-p/AC3220_10/pureprotect-3200-series) as it has a top CADR of 520 m^(3)/h. But if I were you, I might spring for the [Philips PureProtect Pro 4200 Series Smart Air Purifier](https://www.philips.com.au/c-p/AC4221_11/pureprotect-pro-4200-series). It has a top CADR of 600 m^(3)/h.
Keep in mind the CADRs listed for these purifiers apply to the highest airflow speed/setting only. Lower settings have lower CADRs which reduces cleaning effectiveness.
I’ve owned a few over the years. I find Philips ones are the best in terms of performance, running costs and filter life / replacement cost.
Dyson are the worst. My current Philips has as much dust on the filter after a week than my Dyson one did in 6months.
This is the one I currently have - I found this at John Lewis & Partners. What do you think? https://www.johnlewis.com/philips-pureprotect-3200-series-ac3220-10-connected-air-purifier-white/p112585511?tmad=c&tmcampid=7&s_share=jlappios_Y29tLmFwcGxlLlVJS2l0LmFjdGl2aXR5LkNvcHlUb1Bhc3RlYm9hcmQ=
The design of the 3200 is flawed, mixing intake air with the exhaust air.
You can turn a reasonably priced cylindrical air purifier, such as the Philips 2200 into the equivalent of a $4000 smoke extractor. Buy a cheap 1kg netting bag of activated carbon pellets and put it inside the cylindrical filter (wash and dry the bag first). The supplied/replacement filters for any brand aren't great. The main thing when purchasing a purifier is that the fan is quiet and powerful, then just apply that trick. Over a certain price point, you're just paying for brand.
Dyson is the least effective and the most expensive.
You're looking for around 600 CFM total, so 2 of the Philips 3200 should do it, however they would need to be on Turbo all the time which is pretty loud at 53 decibels. On Medium mode it's quiet enough but only produces 170 CFM, so you need 3-4 units to achieve 5 ACH.
Usually air purifiers don't do much from the other room. Is this one large space or is it subdivided into rooms? That will effect how many air purifiers and which exact models.
Avoid the Philips 3400, or any other humidifier that uses warm mist / cool mist / ultrasonic technology. The technology produces large amounts of air pollution (or in the case of the Philips, it clogs its own filter with the pollution it generates).
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Airmega AP-1512HH Mighty
87% positive of 126 users
Durable, effective for allergens/odors, but loud on high.
PepsiMan1912
