haha another issue is ... high rise allow resident to drill big hole at wall meh ??

non weight bearing wall should be ok

just got this from lazada yesterday. can cover up to 500sf feet ..

anyone using also ?

This post has been edited by boxer07: Oct 26 2019, 09:47 AM


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Want to ask.
I see some of the purifier product details mentioned about the coverage are is 300-600sqt. Do this means that within 300sqt can absorb the smoke effective, then if more than 300 till 600sqt, the absorb will be slower?

Yup I'm also considering xiaomi 2s, replacement filter is also reasonably priced

Out of curiosity, any one try before Dyson TP-04 a fan and Hepa purifier. Is it a over rated product?
Online review about them are mostly good thats I wonder whether they are genuine or not.

Recent study and news reveal that xiaomi air purifier showing fake reading, where is not really filtering

Do you have source? Reviews on xiaomi 2 purifier was bad but xiaomi 2s had positive reviews from my reading online.

Yes, I do have source in mandarin if you don’t mind

Yup can

there is ....buy 2 Philips AC1215 each at RM700 , total RM1400 .... can cover at least 600sf each , total 1200sf ....

Don't get this unit. Get Smartmi fresh air system instead. Performance not big difference but cheaper a lot. Bought 2 units, one in bedroom, another in living room.

Benefits:

- Coupled with the use of exhaust fan in bathrooms, i get constant filtered air exchange which provides fresh air to my house.

- Creates positive pressure in your house, which means stale/bad air will leak outside to the building, instead of negative pressure (which allows unfiltered air from the outside to come into the house). I have always seen people in this forum recommending exhaust system for ventilation, which is bad news for the reason stated above since the air that comes from the outside through tiny holes/cracks is unfiltered.

- Misunderstood for its functions. Aside for the need for purified air, we too need to have fresh air. It's the stale CO2 air that we need to exhaust out and replaced by clean filtered oxygen air from the outside. Depending on location, we need 5-10 times air exchange per hour in a particular room. Not having adequate air exchange can cause various problems such as headache and inability to think properly.

- Can be done without major renovation (ceiling type needs to demolish the whole plaster ceiling to allow for ducting installation, unless workers are willing to do the ducting in attic). I hired a company to bore the holes, costs me RM 450 for 2 holes, but you can get indon worker to hack and repair wall using cement/putty for cheaper alternative.

- High pressure air will move to low pressure air area, so if you install 2 units, one at start and another at the end, it can still create a whole house effect. This indirectly helps the exhaust fan in your bathrooms as well because without moving air, the exhaust fan can't exhaust air effectively.

- Smartmi size is less bulky than Xiaomi one but has similar performances (according to a Chinese user who has done quite a thorough test). Can hide in cabinet with louver if needed.

- Both have inaccurate CO2 sensor but luckily it's compatible with Xiaomi home app. Advantages over Xiaomi is that it can be set to run in 3 modes paired with an accurate CO2 sensor (don't buy xiaomi one, buy Cleargrass air monitor because xiaomi has fake CO2 reading). So whenever CO2 is over a certain number it will auto on, or off when it's not necessary to exchange air. Xiaomi one cannot do this because it's set to run only according to its built in sensor which like i mentioned, is inaccurate.

- I can go on and on but for those who values fresh clean air, should really consider one. I will also prepare a smart dehumidifier to pair with it which i can use during rainy days. Never understood why dehumidifier is not widely advertised in Malaysia when we have such high humidity throughout the year. High humidity destroys the furniture in our home and encourage mold growth. Instead, humidifiers are widely advertised. Malaysia electronics companies always play us a fool by selling things that are not suitable for us.

This post has been edited by Cyberbullies: Dec 16 2019, 02:08 PM

another air purifier that you guys can google up and check, this is different from regular air purifier, it washes the air and do not need replacement filters

BRAND : VENTA (Made in Germany)
Uses Venta Disc and water as the filter, it is washable.



Sharing my experience as a user and also seller
1) I usually turn on my air purifier at night when we are in the room. Because if we leave it on 24/7 it might spoil faster, consume a lot electricity and FILTERS will definitely require changing very frequent. But when i use VENTA i leave it on 24/7 as it is meant to be used that way (8watt only) and it is washable, hence do not worry filters getting clogged and require regular changing (waste $$). So, my air is clean once i step into the room and not turn on and wait 30 min to 1hour for clean air.

2) When i inspect my old air purifier, there is a lot dust and dirt collected inside the machine and blower. Is really impossible to clean and makes me feel like washing it with water but it is full with electrical parts, you cant rinse the entire machine with water. VENTA on the other hand, I can remove the fan & other electrical parts within 5 seconds (no tools require) then I take the entire housing into the bathroom and give it a water BATH SO easy to clean, new air purifier everytime i clean it As the fan is removable, you can easily wipe it. WHEN there is FAN = there is dust on it, how to clean the regular air purifier? I believe many ppl never inspect and clean their air purifier thoroughly.



This post has been edited by zheilwane: Dec 24 2019, 10:04 AM

Just my honest opinion so no offence. There's a reason why HEPA filter hasn't been replaced by newer technology:

1) Because it simply works; and
2) There hasn't been any other technology that is more effective.

So unless there is an official and approved test showing that Venta reduces PM2.5 in condition normally experienced by us (not lab condition), i suggest to stick with the proven HEPA method.

Plus it humidifies the air which is no good in Malaysia.

If you want clean air, you have to pay for it, no other way. If you wanna trade clean air for ease of maintenance, might as well not buy one or just buy one humidifier.

You only need to change HEPA filter every 6 months or even 1 year (unless you are in for eg, Beijing), so there's no excuse for laziness.

Gimmicks like washable HEPA and "no maintenance machine" just sound sweet in theory but in reality, you are just wasting money.

Air purifier is actually just a simple HEPA filter + fan, so i don't recommend going for those expensive brands like Blueair or IQAir. I can just get 2x Xiaomi which produce better purification effect for normal use at a cheaper price.

This post has been edited by Cyberbullies: Dec 24 2019, 07:29 PM

Edited... Wrong thread.

This post has been edited by KyEap: Dec 26 2019, 02:12 PM

True HEPA filters are effective but problem is replacement cost. A good air purifier HEPA + CARBON filter cost RM 200 - 400 depending on brand and model. Before buying an air purifier, do check on how many filters and how much they cost.

Venta disk will trap water and water will trap dirt/dust/pollen/bacteria/allergen and etc etc. This is similar to mopping floor or wiping dust, we always add water to mop or cloth so that dust can stick on it, without water we cant mop or wipe dust right. Rain or Cloud seeding (water) is also used to reduce haze. So, i believe we can agree water is also a good form of filter.

As water is cheap and venta only uses 8watt of electricity (rm 28 per year of electricity), we can leave it on for 24/7. I agree HEPA would be more efficient but Venta is on 24/7, when u r not at home, it is still cleaning the air, when u r back home the air is clean. While normal HEPA we only turn it on when we r back home, if we leave it on 24/7, the filter will get clogged very fast, normal air purifier consumption is 40-80watt, as maintenance cost is too high i believe most people do not leave their air purifers on 24/7.

As i leave the venta on 24/7 for 1 week. i notice significantly less dust in my room. Will clean the Venta and do a 1 week test with photos to share next week.


Air condition suck out air moisture, if you notice, all air con will have a drain pipe, where does the water comes from? from the AIR. When air con is on, air will get dry. As tested in my room, VENTA use 1.5L of water per night. As it is using COLD EVAPORATION to humidify the air and not like difusser (constantly adding mositure), it will never over humidify the air, Dry air will pick up moisture in the venta, when the air is moist enough, it wont be able to pick up water. This is similar to sponge, when a sponge if full of water, it would not be able to absorb additional water.

I believe for those people who spent a lot of time in air con room will notice, throat a little dry and skin dry as well. That is why we need to humidify the air. That is also why many people apply lotion in malaysia

This post has been edited by zheilwane: Dec 28 2019, 07:32 AM

Yes filter replacement cost is an issue - hence why i steer people away from branded & expensive brands like Blueair & IQAir unless they are loaded. Xiaomi replacement filter costs around RM 60-80 so it's actually very affordable changing it every 6 or 12 months.

Venta is not without its benefits. It's quite similar to those water filter based vacuum cleaners where they use water to trap dust.

It's good for those dusts that can be seen (PM10 above), but it still can't replace an air purifier since PM2.5 is the one that is more harmful to us as it can go into our lungs.

Humidity is best kept at 40%-50% to prevent mold & bacteria. In my experience, for my bedroom at least, even with aircon it's barely reaching 50% so actually no issue with air being too dry in air conditioned room.

When air is moist enough to the extent it won't be able to pick up water anymore, it means 100% relative humidity = condensation, that's super bad news. Though i doubt it is able to drive the humidity up to that point. But my point is, it's best to keep humidity in the range of 40-50%.

Also, i am curious though, don't you need to top up the water in Venta? I remember my Sharp 2-in-1 air purifier with humidifier consumes 100% of the water in its container in 1 single night, making me lazy to use the function after a while.

Plus, i don't quite get it. Venta sucks in air with dusts into the water, and then evaporates the water full of germs, doesn't this mean that it's reintroducing germs into the air?

Based on the above premise, if you don't clean it often (like every 3 days at the minimum which nobody would bother to), those accumulated germs in the machine are going to cause all sorts of respiratory problems after having been misted into the air by the machine.

This post has been edited by Cyberbullies: Dec 28 2019, 12:39 PM

Cyberbullies he is a seller. You expect him to give an unbiased opinion and say no good? 😅

This post has been edited by idoblu: Dec 28 2019, 12:46 PM

If not mistaken Venta and other water based air filtration has a replaceable Ag ion module to disinfect the water.

Only moisture gets evaporated. Germs/dust/bacteria and etc etc cant be evaporated. Ordered an air tester can share detail results on air quality and humidity. Anything floating jn the air will be adhere to water as explained rain water wash away the haze (pm2.5). It will work as well for venta but purification takes longer compared to hepa. However, venta is on 24/7, keeping air clean all the time, so speed is not that important.

If u turn on air purifier only when there is haze then yes u need speed. Estimated bedroom also nd minimum 20minutes for total clean air for hepa but if u use venta 24/7, when u enter your house the air is already clean.

Add water every 2 to 3 days once depending on model used. When water level is low, machine stop functioning and u will know is time to add water. So i jus pour away n add clean water.

This post has been edited by zheilwane: Dec 29 2019, 07:13 AM