kF94 or Surgical mask?

[Ender]

l am lazy to try new brands of k94, scared also the filter might not be as good, I juz always buy the most affordable Get Ready Black, nowadays bo dye smell already, not sure if the black material has changed.

If you are using coupons the F808 is the same price as the Get Ready F801. F808 is 4 ply. Although I mentioned before 3 ply as good as 4ply if they are legitly certified KF94, but for the same price, I go for the F808..

 

[mosmos]

If you are using coupons the F808 is the same price as the Get Ready F801. F808 is 4 ply. Although I mentioned before 3 ply as good as 4ply if they are legitly certified KF94, but for the same price, I go for the F808..

Yes, I have also used F808 before, still have a few pkts left, it has a chlorine or bleach smell, and whenever i talk, the mask will slip down, i guess maybe big for my face

 

[WussRedXLi]

 

[WussRedXLi]

bro can help to measure the front panel height of Nawell medium size mask?
Stated measurement M is 197mm*145mm. I cannot figure out how to get 145mm (comparing with the masks I have)

https://shopee.sg/product/481554201/4097291243?smtt=0.150691548-1639142211.9

my SIL has a small gap at her chin with F919, does it mean F919 is still big for her?
Which is the slightly smaller/shorter mask for her? Any advice? Thanks.

Yes, that is too small for her. I think might need to go for the F915 teenager one for a reasonably budget option but that might be a wee bit on the snug side, but it shd be ok. Maybe pull on the earloops for 5 seconds or something. The vertical dimension might be a wee bit tight.

The Nawell M one shd be wee bit slightly bigger.

 

[WussRedXLi]

bro can help to measure the front panel height of Nawell medium size mask?
Stated measurement M is 197mm*145mm. I cannot figure out how to get 145mm (comparing with the masks I have)

https://shopee.sg/product/481554201/4097291243?smtt=0.150691548-1639142211.9

145mm height is like this. This is Nawell Medium vs F731 K-medic.
Nawell Medium is a a bit smaller. Can see it in the 2 dimensions. (masks are verified to be positioned correctly, just some parallex error due to the camera wide angle)

Then the F915 is a wee wee bit smaller than this Nawell M

 

[WussRedXLi]

bro can help to measure the front panel height of Nawell medium size mask?
Stated measurement M is 197mm*145mm. I cannot figure out how to get 145mm (comparing with the masks I have)

https://shopee.sg/product/481554201/4097291243?smtt=0.150691548-1639142211.9

Eh bro, salah. The above pic, the Nawell is supposed to be small size, that's what the pax wrote on the ziploc.
It might be 184mm x 135mm. I go ask the pax.

 

[WussRedXLi]

Thanks so much for taking time out for this. And for advising re the Hansol. The person who switched to this was getting mouth rashes from contact with surgical masks (BYD) and the Hansol was a good fit. Too bad it doesn't filter down to 0. Luckily not taking any long flights.

Good to know about Nawell. An option for smaller faces. Surprised that Tamsaa and Purefit do good jobs even though both are 3 ply. They are comfortable for average sized faces.

Hope 12/12 will have good deals for kf94 masks! Thanks to Ender for the tip on Heart Mom.

The nawell KF94 you sent me, is it the small size (184 x 135mm) or Medium (197 x 145mm)?

 

[ataurus]

The nawell KF94 you sent me, is it the small size (184 x 135mm) or Medium (197 x 145mm)?

Sorry, it's Medium. I wrote wrongly on the bag.

 

[Squaredot]

145mm height is like this. This is Nawell Medium vs F731 K-medic.
Nawell Medium is a a bit smaller. Can see it in the 2 dimensions. (masks are verified to be positioned correctly, just some parallex error due to the camera wide angle)

Then the F915 is a wee wee bit smaller than this Nawell M

Many thanks bro for this photo to help me understand the 145mm measurement.
Will convey message to SIL the choices of Nawell M or F915..

thanks ataurus for nawell shopee link.

 

[Tempo13]

Hi, thinking of trying out the F929 as an alternate to the black GM. Would appreciate for feedback. Tks.

 

[noobiee]

wah i received the prism, so soft and the shape get crushed easily when breathing

 

[Ender]

wah i received the prism, so soft and the shape get crushed easily when breathing

Good to know that the structure collapse so easily for Prism.. Better to avoid if that the case, very uncomfortable and the inner lining get wet easily ftom the saliva.

 

[WussRedXLi]

Sorry, it's Medium. I wrote wrongly on the bag.

Ah......that's why. Coz it seems rather big to be small

 

[WussRedXLi]

wah i received the prism, so soft and the shape get crushed easily when breathing

Good to know that the structure collapse so easily for Prism.. Better to avoid if that the case, very uncomfortable and the inner lining get wet easily ftom the saliva.

The issue is that if it is not thin / low gsm materials then it won't get that kind of high breathability "spec". The middle meltblown has got to be thin in order to get that high performance spec, so is the external first layer spunbond.

I mentioned it's supposed to be a rough use, cheap (usable with 2 coupons, coz not time sale item listing) and high breathability mask. Every 1hr change during rough use (outdoors) kinda thingy.
The design is also that the top and bottom flaps are quite "deep", so actually the front panel protrudes out a fair bit away from the lips......so actually it touches the lips just a wee bit even though it has a fair bit of collapse.

So it's not that much different from say, a F731 K-medic. That one also would have its front panel touching the lips when inhaling, but just a wee wee bit, not a lot.


I can confirm better than the F801 white KF-AD (or black KF-94).....i used that before.
Coz that one the top/bottom flap is like 42mm only. This Prism one is 53mm. That means the front panel protrudes out like 1cm more than the F801. The F801 has a wee bit of this claustrophobic feeling esp if your lips is protruded / pouty type
(For reference, the biggest i have measured is the F727, that one is 57mm, harder front panel spunbond also......so that one confirm wont touch the lips even if you pout out).


If want non collapsible stuff, choose Nawell (F807) or Chamsarang (F919). Hard materials and also top/bottom flaps > 50mm. But issue is that it'd be thicker....and i know for F919 it is a fair bit higher breathing resistance. And the Nawell F807 already had comments and also 1 fella who bought it PMed me that the hard top/bottom flaps are not so soft, so it's a bit uncomfortable and difficult to fit.



Hence, there is no perfect mask around, haven't seen it before.


We just used a few pcs pf Prism yesterday for our spring cleaning, ie sweaty stuff. Is good. I never even sneezed even though i usually kena that coz i have allergic rhinitis.
Other uses include for exercises etc.

 

[WussRedXLi]

Oh yeah one more thing, i believe the majority of the heat is due to the exhaled air being trapped in the space.......but then the Prism (and maybe F801 white, never used it before tho.....i only used black kf94) does seem to be able to disspate a fair bit more heat due to its very thin material design.....not so warm.

There used to be such masks before, previous versions of F505..... and ILSON ( i had them sent to me for testing back when we had out TTSH and Airport clusters when delta first started).....they are what the south koreans term them as summer masks. Issue is that they don't measure well. Ambient 3k, i got for ILSON that time it was 2k on the meter.
For reference, this Prism is doing 100-200.


There are other cheap masks, and also measure better (tiong stuff predominantly), issue is that they are much thicker, and also not as comfy.

The soft material (and smooth inner spunbond) actually contributes to its comfort during wearing.
Actually there are quite a number of reviews for the qoo10 item stating this........ (soft material)


Oh yeah, another cheap mask (cheap for rough use/throw after 1hr), the F808, also has rather close to the lips front panel. So won't be comfy also, even though it has harder material (not as hard as F919 or F807 tho) to resist front panel collapse.
Is worse in this regard than the very soft Prism. I'd have to admit that the Prism is rather soft.

 

[musiKchYld]

https://shopee.sg/-3-size-9-color-M...-White-Black-Gray-Pink-i.481554201.4097291243
Maybe wait for WussRedXLi to test it out first. I hamtam only because wanted smaller sized masks.

Hi!
Was wondering if you could take a closeup photo of the packaging your Nawell medium mask came in?
I looked at buyer review photos but can't see the words Nawell anywhere. Went google and there are NAWELL on other masks packaging for other masks, so I was a little confused.

Been searching for a M size mask for a long time. Good Manner is good (thanks to WussRedxLi for the recommendation!) but it's slightly loose for me on the cheeks side and tying a knot makes my ears really uncomfortable when worn for whole day

Thanks in advance!!!

 

[ataurus]

@musiKchYld, I can't post images here so have uploaded them to Photobucket (hope it works):

https://app.photobucket.com/u/ataurus2/a/c1056865-c32d-4111-b26a-d5bd4ceff757
There's 'Nawell' in the url printed at the back of the bag, a little above the bar code. I'm not the one wearing the Medium but am told it's fine. No complaints about stiffness or smell. But then again, these are secondary if you've only had masks that slip off the face.

On smaller masks, this seller has a few models that might suit:

https://shopee.sg/★100P-BULK★-KOREA...8?sp_atk=1ef0c24b-849c-42fd-bd5a-128d9319e4ef

The seller also sells them in 10s (search within the shop) so you can buy a few to test out. Received the Plan Zero as a sample and it was a perfect fit for a smaller adult face. Plan Zero is only in black though.

 

[WussRedXLi]

I was trying to measure the mask in the typical tiong packaging below. (10pcs / pk)
Surprisingly it measured very good, was like zero , with ambient at 4k.
Last time someone sent me a 1 pc / pack individual packing of the same thing below, that particular mask sucks....something like 5k ambient but gave 2.5k measurement kinda result....cannot be used one.

Can be for rough use, very cheap, 1 packet for 80 cents only. My Parent in laws came from Indonesia (currently quarantine at my house)......gave me 5 packs of this. Initially i thought is sucks one, coz i measured this packaging before and that sucks. Surprisingly it is good, MIXSHOP BFE 99.9% kinda good in fact.


So can be for rough use like the Prism. Cheap. In fact, BLOODY CHEEP.

But then, is like 2X-4X higher breathing resistance that of say the F731.
When you exhale, you can feel the whole mask like hovercraft "wanna float" one.
It is also relatively thick, in fact slightly thicker than MIXSHOP. Holds its shape pretty well.

So.......you choose your poison. There is no perfect mask.

 

[WussRedXLi]

Unfortunately, was trying to video the measurement process, the laser particle counter fell off the air purifier surface, landed on the floor and the USB socket got ripped off.

Luckily was just the soldering pads/part got ripped off. ie the 4 metal tabs at the 4 corners.

The USB power is supplied to the PCB via the 5 very small tabs.

Just used super glue to stick the whole base of the USB socket to the PCB (i bent the 5 micro tabs out a little to ensure better contact). Pressed it down, the thing is good to go!

After 5 mins of pressing down with super glue applied, i could remove my fingers and the device kept going.

Added more super glue to the 4 corners. Hope can hold.

Won't be as good as new, but still ok.

Last time i also killed my one other laser particle counter this way. Dropped it and ripped the socket off.
Same thing, super glue saved the day. Held the thing for another 2-3 years.

 

[WussRedXLi]

So far so good, 30 mins liao. Still functioning. Super glue holding the socket well..... phew!!!!!

Later midnight can switch off the fan. Dont want those white vapours outgassed from the drying super glue to mess up stuff on the PCB and most importantly the 5 micro tabs metal contacts (2 of which supplying electrical power).

PILs gave me 5 of the 3M micropore tapes. Cheap, only $3 for the 5pcs.