Bro, what is the HEPA micron? and How much is the replacement?

Thanks for the info

From Coway Rep/Company?

Might as well buy Mi Purifier Pro?

I'm using the Mi Purifier 3H, spec written noise lowest is 32.1, but I can't heard anything pun. I got another one is Atmosphere Gen 2 lowest is also around 34 iinm. Also not noticeable.

Also, so far I haven't have any issues with the particle sensors since I run manual speed.

Lastly, ionization is just some fancy feature like hot and cold water from water purifier. A proper air purifier must come with True HEPA filter that does the job done.

I still got 80%/118 days left. So let you know again after end of 150 days. lol

All you need is a good True HEPA filter that cover your bedroom as you spend 8 hours on your bed.

calculate your bedroom size. Buy Air purifier calculate using the performance are based on CADR (Clean Air Delivery Rate)
Use this for your need calculation
https://reviewsofairpurifiers.com/cadr-calculator/
L x W x H = Room Size

What is your budget?

Let us know more before we can dive deeper into your situation.
1. Calculate your bedroom size
2. Calculate your kids bedroom size
3. Calculate your living room size

This post has been edited by NightFelix: Aug 28 2020, 10:08 AM

DO NOT ever recommend an ionizer based air purifier to a person with asthma. Plasmacluster is just an another patented marketing name of ion technology (layman term ionizer) by Sharp.

Medical Center/Hospital wouldn't use ionizer, they use HEPA based technology but not Ion based tecnology for their air filtration system.

Asthma people need to avoid all Ion based tech air-con and/or air purifier.

That is your basic guideline where to start searching for.
1. 133CFM / 230m3h
2. 100CFM / 170m3h
3. 233CFM / 400m3h

Try get a Xiaomi Air Purifier 2C/2H/3H. These are using the basic standard affordable HEPA filter with micron size 0.3
Some high-end HEPA filter can go as small as 0.0024 like the one from Amway. Dyson also got as got their HEPA as small as 0.1 microns filter but with 70 CADR.
Coway/Cuckoo also got, but beware avoid ionizer feature, their product outright is not worthy due to spareparts are limited to purchase, while rent monthly option are easy to own but pricey in the long run. (Personally always recommend outright purchase if you can afford)

Since you have estimated RM2,000 for each purifier. Which mean you have RM6,000 budget to buy 3 air purifier.

1. Buy a "USED" Amway Atmosphere Air Purifier (Gen 2 - not the latest one) from Carousell/Facebook - around RM1,500+
- Flagship/Top high end grade air purifier (new one cost at RM4500++)
- Prefiter included (washable like air-con)
- HEPA filter micron 0.009 (everything you need is this filter - replacement cost around RM500, lifespan last around 1-3 years)
- Carbon filter to filter odour (you can skip to replace this filter if want to save budget - cost around RM400)
- CADR 400 m3/h to suit all your room size
- Allergy UK certified, AHAM certified (US standard), Energy Star certified (save electricity)
- Spareparts still sell by Amway in case need repair (Amway have track records sell their parts for more than 10 years after stop selling the model)
PS. I was still using this model for more than 6 years, it solved my nose allergy problem. And I even give my father use during his time resting at home after surgery from cancer. I personally high recommend this due to reputable company and parts availability even it is used model / no longer selling this gen 2 model. You can go to Amway HQ PJ to check this old model see still got display or not.

2. You should be left around RM4,000 budget
Buy a NEW Xiaomi Air Purifier Pro/3H (You can get 2-3 units with these balance of budget)
- all Xiaomi Air Purifier shared the same 0.3 micron size of HEPA filter (min standard for HEPA are 0.3 micron and below)
- Xiaomi should fit all your requirement as well. CADR 300 m3/h to suit all your room size
- The only cons that most people complain is their new generation come with RIFD to detect filter expire to force u replace otherwise not spinning at all (I just use for more than 1 month so no idea)
- and the filter lifespan is shorter than most of the competitor. is cheap to replace but shorter life span compare to those 1 years.
PS. I just bought 3H model, not much to comments, plan to put in baby room few months later. Currently using by me as well. You can walk in any Mi Store or Senheng to check display model.

3. There are some similar price range air purifier from Philip model AC2887. Their HEPA filter are much longer than Xiaomi. around up to 24months claim by them. The machine around RM1400+
PS. I also survey this before but end up I prefer the fancy feature from Xiaomi and cheaper ownership price.

There are still few out there like BlueAir 490i/690i but new one cost like RM3400/4000++ too ( with Hepa and high CADR)
Sharp majority come with Plasmacluster, as I said earlier, asthma must avoid all ionizer
Both Coway/Cuckoo most of the model come with ionizer, low end CADR are low.

Things to consider:
1. Performance (CADR, Technology (HEPA are most important))
2. Initial Price to ownership (outright/rent)
3. Cost of filter replacement (life span and price)
4. Warranty? How long and if not, replacement part / spare part still available?
5. Others certification (AHAM / Allergy UK etc)
6. Other fancy feature (smarthome/nightlight etc)

This post has been edited by NightFelix: Aug 29 2020, 12:46 PM

There are EPA, HEPA and ULPA. Can google for these info.
ULPA Filter vs. HEPA Filter: What's the Difference & Why Does It Matter?
https://www.hepacart.com/blog/ulpa-filter-v...-does-it-matter

Just like comparing Activated Carbon Filter VS Membrane Filter (or RO filter) for example.

How many CADR that the 3 model ULPA can provide in your link earlier?

Might as well buy 2 units of Xiaomi Mijia Air Purifier 2H for the price. CADR around 50% more than it.
HN selling RM799 for Joy S. 2H selling around RM399 or lesser

Joy S no meter, no app, no remote. use it to believe it work for you. replacement around RM200 for 1 years (assume 12hours daily) - review from Google
2H got app to monitor. filter cheaper but last for 150 days only.

Since you already aware of the Joy S is inferior to 2H and you wish to try, ain't nobody gonna stop you lol

Can look for used sets from FB/Carousell if want to try for the sake of try, but paying for a new one macam not worth for me.

Xiaomi Manual Speed got 1-2-3 only, but you can automate it using app re-set it to max speed if you wish for every hour.
IF: 08.00PM
THEN: Set to MANUAL
IF: 10.00AM
THEN: Set to MANUAL

I have no problem for this since I don't always open turbo 3 speed for more than half hour.

There are model doesn't come with RFID if that is a concern for you but forcing you to change filter is good for our health anyway. We human always have laziness or procrastination to delay our purchase filter.

Seems like you are a person would like a hassle free experience. then just go for latest 3H or Pro (subject to your budget and room size)

Bear in mind, when filter time up (150 days of usage) u need to replace it, due to the purifier will stop working because detected filter expired.
don't worry 150 days is not real time 150 days, is your usage 150 days. (depend fan speed also)

Quick update: my 3H just turn into 0% and I can confirm still can run even without putting the new filter inside.

Yes still working, but I just replaced a new HEPA filter yesterday. Bought RM99 from Shopee.

ya, still can run what. i let run expired for couple of weeks before I bought a new replacement.

Why you want a air purifier? there must be a reason behind your intention to get one.

Otherwise, people probably just recommend u either the cheapest or the most expensive one.
and someone even having few cats at home with no air purifier.