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Air quality

Questions covering indoor and outdoor air quality through the Dyson App.

  • 69 Posts
  • 231 Replies

69 Posts

H
hanzisanoNew Member
asked in Air quality

Constantly fluctuating air quality - Is this right?

The air quality in my room, according to my sensor, has been fluctuating very dramatically and I am wondering if this happens to other people, if there is something wrong with my sensor, or if I just have a serious air quality problem? If anyone has any input on how to interpret this information it would be super helpful! Thank you!(Edited by moderator – Tag added) 

7
B
11 hours ago
H
HopperNew Member
asked in Air quality

PM 2.5 and PM 10 always exactly the same

Just as the title says. Is this common indoors? I live in a ten story apartment.

4
N
10 days ago
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EsreinhaNew Member
asked in Air quality

could my humidify+cool be increasing VOCs and NO2?

I have a Dyson pure humidify + cool. I am noticing that when I turn it on, the air quality readings are good. After running the machine for 30 min the VOC and NO2 quality moves very quickly to poor or very poor. If I turn off the machine and wait 20 min, the readings go back to normal.  I completed a deep cleaning cycle even though it wasn’t prompted but this has not improved. 

0
E
24 days ago
O
Ok LoopsNew Member
asked in Air quality

Dyson Air quality

hi i was just wondering if anyone else has problems with their dyson fan and their xbox or any gaming console/pc because i turn on my xbox and play for a couple hours and my air quality for pm2.5 and pm10 instantly jumps to 130 and the air quality in my area is 19 and my house is very clean so i was wondering if my xbox would cause any problems with my dyson? if anyone has this same problem please let me know :)

2
M
Bronze Level Contributor
30 days ago
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amicwyoRookie Member
asked in Air quality

Sweet Smell from New Air Purifier Filters

Hello, I have a problem with any air purifier filter I purchased from Dyson, and it’s driving me nuts! All of the filters produce this sweet yeast-like smell. The smell occurs immediately right out of the box and never goes away. It’s especially strong when the air purifier is on low (heat or no heat). I have two air purifiers HP01 Hot and Cold and P01 Pure Cool Me Air Purifier Fan and the issue is the same with both. I have had my HP01 air purifier for many years and the old filters (one purchased more than 2 years ago) never had this issue. Has Dyson changed their filters? I use a filter in my toddler’s room and am worried that this smell is harmful. What is causing this smell? Is it safe? The air never smells fresh! 

1
Jack
Dyson Community Manager
1 month ago
M
meluseeneNew Member
asked in Air quality

poor/extremely poor PM2.5 and PM10

Several times a week, the air quality degrades very suddenly. Sometimes I am home, sometimes I am not, sometimes I’m awake and sometimes during the night. Sometimes I’m home for several days and do not leave the apartment much… and the quality stays in the green.i don’t think the sensor is clogged or working poorly as I have another detector, a small one without any detail from another brand and that is located on the other side of the largest room in my apartment. The second one is not a smart detector, it’s just a light (green/orange/red) so there can’t be any conflict.And the two are usually in agreement over the overall quality.my place is highly insulated so the indoor temperature is very stable and the heater activity is minimal (I can also see it on my utility bills). I cook but obviously not while I’m not home or while I sleep. I don’t smoke and I don’t use any gaseous products. I use a built in ventilation system (over the stove but also from the building itself) whenever I’m

0
M
2 months ago
C
catcheunNovice Member
asked in Air quality

VOC units

Hi there I have an air quality monitor at home and want to know what’s Dyson’s ppb ( or any unit of measurement) on you VOC scale ?   

10
Jack
Dyson Community Manager
2 months ago
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catcheunNovice Member
asked in Air quality

monitor not matching?

I am testing the sensor , the small one doesn’t really detect VOC. I have the two side by side on auto.  PM are close enough VOC tho , the small one doesn’t really show VOC? Any solution ? 

0
C
3 months ago
R
rangerRookie Member
asked in Air quality

Dyson air purifier big + quiet formaldehyde BP04 VOC and NO2 values do not display on screen

Hello, I have recently purchased a dyson air purifier big + quiet formaldehyde BP04 and for the first week, it seems to be working as expected, however, when scrolling through the information screens on the unit itself with the remote, it does not display the value for the VOC or NO2.  That said, when I look at the app on my phone, the VOC and NO2 values are displayed as expected.  Further, the values are being recorded and tracked in the chart on the phone app.  But again, the VOC and NO2 values do not display on the unit itself.  Finally, the other values such as air quality, PM, temp, humidity formaldehyde, etc. all display the value of the current reading on the machine’s little screen as I click through on the information button on the remote.   Does anyone else have this issue?  Does anyone know if there is a fix?  Thanks!

1
Jack
Dyson Community Manager
3 months ago
D
dontpanicRookie Member
asked in Air quality

Machine Air Quality Report Unavailable

I’ve got Dyson Purifier Cool in my study and a Big+Quiet in my living room and I tried generating a Machine Air Quality report for the first time with both. I’v e had them for a few weeks now and Continuous Monitoring has been turned on this entire time. On the iPhone app, I can see the graphs showing the air quality of the previous few days, even when the machine was switched off.But the report error message says: “Your machine hasn’t collected enough air quality readings” (see screenshot). I have tried restarting the app and the machine. No difference.    

10
G
4 months ago
D
DshehiNew Member
asked in Air quality

dyson app not available in my region

Dyson app is not available in my region…is there any way to getting it installed? 

3
J
Silver Level Contributor
4 months ago
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Nolon_KsuskNovice Member
posted in Air quality

Dyson PH04 Never going into standy/idle mode

Hello,Firsty sorry for my bad english I am no native speaker.I have set the air purifier up 3 days ago in the evening. I have set it on auto purify and auto humidify for more than 24 hours. It detects PM2.5, 10, VOC and so on very good and cleans it. But my main issue is the auto mode and the HCHO Formaldehyde Levels. The device never goes into standby. It always runs on at least fan speed 2 doing whatever. I think it tries to clean the formaldehyde but I am not sure. The HCHO levels stay at around 0.50-0,55 all the time. It never goes up or down. Even when the purifier is turned off the level barely changes. So I suspect the sensor somehow is not working. Once it reached 0,43 and 0,67. But I have never reached the auto setting where the device waits for the air to get bad and do something. Currently my PM2.5 level is 2 and so is the PM10. VOC and NO2 are on 0. HCHO is on 0,55 and the device runs consantly which is pretty annoying. I have it running for more than 72 hours now. Did a re

2
N
4 months ago
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NickMNew Member
asked in Air quality

TP09 In AUTO won't stop running - Formaldehyde

We have had our new TP09 for about a week now. We really like it and can tell it’s made a difference in the air quality. One thing we have noticed is that is never stops running in auto mode. Definitely due to the formaldehyde which seems to be down to .045-.060. But can’t get lower on its own. If we open windows it will start to read lower.  is it possible that our house just has that much (5 year old new build) that it can’t keep up on its own? When we first got the TP09 it was sitting at .275. 

2
N
5 months ago
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MarekRookie Member
asked in Air quality

Dyson Purifier Humidify+Cool Formaldehyde Air quality detection strange - Should I repair it?

Dear community, I’d like to ask before I send the device to service.We have it for some 4 months but from the beginning I observe strange behavior regarding the airquality detection.It’s not about it doesn’t detect a bad airqality (it’s 99.9% problem VOC). But after detection it almost never purifies / solves the problem. What helps always is a restart (power cable out and in). Examples:I tried to put something smelly near the sensors. It detected and the line went yellow. So it works. The purifier is running and it detects something in the evening and the line goes yellow, ventilation 8-9 pretty loud. This doesn’t change until the morning. So it is loudly running the whole night but the airquality is not better (at least he thinks so). Plese don’t think there is something smelly in the night. no! It happens also during the day when the flat is empty and we are away. What always helps is a hard restart. So imaging the line goes yellow and it’s starts a hard purifying. In 5 Minutes I ta

2
M
5 months ago
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dboy74New Member
asked in Air quality

Air quality graph is consistently the same - Any Ideas?

I have a TP09, and I've been using the fan but the line graph for the air quality basically never moves. It's essentially a flat line in the green area just below the yellow area. To try to test it I tried spraying some Febreeze in front of it but it made no bump on the graph at all. I also tried smacking a chair to release some dust clouds in the air but nothing changed either. It also shows the PM2.5 and PM10 level both either at 1 or 2 which seems good but it seems too good, when the outside was around 10 and 40 respectively. Does this seem like it's working properly or is the sensor faulty?

1
A
6 months ago
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getparuNew Member
asked in Air quality

PM 2.5 increases When Fan Speed Increases - Why?

I have a Dyson TP04. I have recently noticed that the PM level shown in the display increases when the fan speed is increased. For example, when the fan speed is at 1, the PM 2.5 displayed is around 25. But when I increase the fan speed to 10, the PM 2.5 is around 60-65. Using an external air quality monitor, I find the PM level to be around 40-45. What could be the reason? Any suggestions on how I can sort this out.

3
A
7 months ago
A
andycNovice Member
asked in Air quality

Detecting Antibacterial Spray - Data Missing

I am happy with my Dyson HEPA Purifier TP09 Formaldehyde Purifying Fan however, when testing it using Dettol Antibacterial Cleaning Spray, it doesn’t seem to detect anything.Surely it should detect antibacterial spray as it has nasties in it and I thought would affect the air quality?The purifier detects other sprays such as dry shampoo spray, just surprised it didn’t detect the antibacterial cleaning spray.Would be grateful for any advice.Thank you,Andy 

4
A
7 months ago
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serda88Novice Member
asked in Air quality

Why is my ph01 not detecting cigar smoke?

We own ph01 machine that we purchased in 2021 and we moved to a new apartment where the neighbor under us smokes quite a lot during 6:30-7:30 in the morning and 21-22 in the evenings on her balcony under us. We have cats so they like spending their time outside on balcony, otherwise we would just keep it closed.The problem is that dyson does not even register or reacts to cigar smoke/smell. This morning we could smell it in the whole apartment and that’s what woke us up as it was quite bad while dyson, which is sitting next to balcony doors did not change the speed of fan or anything while in auto mode. NO2 levels remained the same during the whole “incident” where they should be shooting through the roof.  We cleaned the filter/particle detector thing, removed dust from filters, cleaned the whole machine but PH01 just stays in idle mode. We are really running out of ideas

5
S
7 months ago
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bitahajimiriNew Member
asked in Air quality

Can I run the air purifier continuously?

How long can an air purifier run continuously ? should I run my air purifier 24/7?How often should i run my Dyson purifier humidify+cool formaldehyde ? Can i leave my air purifier on all day and all night?

1
A
8 months ago
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crookesaRookie Member
asked in Air quality

Air quality will not improve - Severe 999 reading showing

We have an Dyson Pure Hot+Cool Advanced Air Purifier which we purchased in 2019 and has been working fine. Lately we set it to cool at night and everyone morning we come down and the fan is at full power. We’ve also been away for a week and for the whole week it was at full power to clean the air. We recently replaced the filters from the 2 piece set to an all in one part as supplied by Dyson.  As you can from screenshots it doesn’t seem to improve the quality. What can be done to stop it always being on high and the air quality not improving. I have a feeling it might be a sensor or something as nothings has changed in our home.  Thanks for any help.   

4
C
8 months ago
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jimkeirNovice Member
asked in Air quality

Dyson Purifiers - Auto cooling and fan speed

In cooling+auto mode, it seems the HP09 fan speed is driven entirely by air quality. Is there no way to have ‘auto’ control the fan speed based on temperature? I know there’s no active cooling but setting the fan speed based on user-defined lower and upper limits would be very useful. i.e. the fan goes from 0 at 20 degrees to 10 at 30 degrees.

9
J
8 months ago
J
JacobW1New Member
posted in Air quality

Purifier with a Humming Noise. How can I stop this?

Dear All last summer saw the arrival of a heatwave that was set to break all records. Due to the nighttime temperature increasing I purchased a fan HEPA formaldehyde and honestly saw a measurable improvement. Packed away for the winter and then unpacked in June this year when we had a few hot days and nights and it’s as if I have a different product. It’s intrusive- it greatly affects the acoustics of my TV. It makes a humming noise at night time not immediate (but wakens me up after 90mins and I now hate it. Last week I slept in for a medical appointment as I couldn’t hear my alarm clock as it drowned out the noise. Can the community help? Dyson you are impossible to get hold of! This monster has greatly damaged my sleep pattern.I have resorted to my trusted Dyson air multiplier as it was basic and did what it was supposed to do.Dyson can I sell it back to you please?(Moderation Edit - Tags added/Title Updated)

1
DavidTaylor
8 months ago
A
An44444Novice Member
asked in Air quality

Air quality discrepancy between Outdoor Air Quality and indoor reading. Is there a way to fix this?

As you can see my air quality is reading “fair” but in the graph it never reads as “fair” it’s reading as “good”. This means I’m not able to track it over time or see how often it’s actually turning on. How do I fix this? Why is this happening?? 

10
A
8 months ago
F
FlorenceNovice Member
asked in Air quality

Formaldehyde Cool Purifier doesn't improve air quality especially VOCs

I’ve already returned one Formaldehyde Cool Purifier mainly because it gave the same high readings of VOCs every night whether it was on, off or in auto mode.  I ordered a replacement and now it is doing more or less the same thing.  In auto mode it switches itself on presumably to deal with the high VOCs but the level does not drop for hours.  It dropped after the same amount of time even if it wasn’t on but was still plugged in and continuously monitoring.  Does this mean the filters are not working for VOCs or the particular VOCs its detecting? Or does it mean it’s creating a false VOC reading? I’m also getting whines, whistling and buzzing depending on what settings its on and there seem to be a lot of posts on here about these things that haven’t been resolved by Dyson yet. 

6
F
8 months ago
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MartinhRookie Member
asked in Air quality

Dyson fan (am09) filter change - Is there one?

Hello, we’ve just got an am09 hot and cool small fan and it smells, how do we change the filter (if it has one)thanksMartin (Moderation Edit - Tags Added)

4
M
8 months ago
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