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MareLuce Jul 6, 19 5:42 pm

Wildfire smoke & travel air purifier with HEPA?
I will be traveling to areas affected by wildfire smoke.

Does anyone have recommendations for a travel air purifier with a HEPA filter?

fyi - summarized from an EPA report on wildfire smoke a summary of why breathing smoke, aka "particle pollution", is dangerous. I added bolded words.


[...] Additionally, the size of particles affects their potential to cause health effects.
=== Human Hair === diameter 60 micrometers
For purposes of comparison, a human hair is about 60 micrometers in diameter.

Particles larger than 10 micrometers do not usually reach the lungs, but can irritate the eyes, nose, and throat.

=== PM10 === diameter 10 micrometers & smaller

Small particles with diameters less than or equal to 10 micrometers, also known as particle pollution or PM10, can be inhaled deep into the lungs. Exposure to the smallest particles can affect the lungs and heart.

=== PM2.5 === diameter 2.5 micrometers & smaller

Particle pollution known as PM10-2.5 or just PM2.5,includes both
- coarse particles, with diameters from 2.5 to 10 micrometers
- fine particles with diameters less than 2.5 micrometers

Particles from smoke tend to be very small, with a size range near the wavelength of visible light (0.4 – 0.7 micrometers). Therefore, smoke particles efficiently scatter light and impact visibility. Moreover, these particles are within the fine particle PM2.5 fraction and can be inhaled into the deepest recesses of the lung and may represent a greater health concern than larger particles.

From: the EPA guide to wildfire smoke

freecia Jul 7, 19 10:16 pm

I've seen a few small air filters sized for cars and some for desks. Hotel and meeting rooms are a lot larger and probably need a floor standing model. Have you thought about shipping a purifier to the hotel or inquiring with the hotel(s)? I imagine they have some type of air filtering/deodorizing machine for rooms which were smoked in, had pets, "allergy free", or just malodorous.

A decent PM 2.5 face mask can help. I picked some up last year in Asia for California forest fires as it can get really hazy and they carry kids sizes (kids have a faster breathing pattern than adults). Also useful for pollen allergies. I happened to see face masks at my local Daiso in CA this last weekend.

TWA884 Jul 7, 19 11:36 pm

The is a true HEPA filter with an effective coverage area of up to 160 sq. ft. It measures 10.5 x 6.8 x 7.9 in. and weighs 4.8 lb. Other HEPA filters of a similar size have only half the coverage area.

MareLuce Jul 8, 19 3:16 pm

Thanks @TWA884

This does look to be the smallest with a true-HEPA. I think I'm looking at suitcase #2 , but worth it, if it works.

On the good, they have their own website presence outside of Amazon:
Though their rating is only a C

Have you used this model? Product Dimensions10.5 x 6.8 x 7.9 inchesItem Weight5.55 pounds

TWA884 Jul 8, 19 8:21 pm

Originally Posted by MareLuce (Post 31282688)
Have you used this model? Product Dimensions10.5 x 6.8 x 7.9 inchesItem Weight5.55 pounds


I was looking for the Honeywell table top unit which my daughter used in her dorm room while in college. That model had been discontinued, but I ran across the LEVOIT while searching for it.

Here is a , it is larger than the LEVOIT and is rated for use in rooms no larger than 80 sq. ft.

DragonSoul Jul 9, 19 11:20 pm

Not sure what size room it can clear, but the Pout Nose 1 is 3x4x13in and 1.6lbs (not the mini version). The HEPA filter can filter down to 0.25 microns. It also can run off an external charger (USB). Just don't know whether you can find where you are. Can find it for under US$80 where I live.

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