Haze guides for people who check the PSI app twice an hour
Short, honest reads on haze numbers, purifier sizing, filters and buying from AliExpress without regrets.
- PSI or PM2.5? How to read Singapore's haze numbers
Confused by PSI and PM2.5 during haze? A plain guide to NEA's 24-hour PSI, 1-hour PM2.5 bands, and what to do at home when the numbers climb.
- How to choose an air purifier for haze without getting fooled by the box
Choosing an air purifier for haze in Singapore? Start with CADR and a real HEPA filter, then check noise, filter costs and the plug. A no-hype checklist.
- What size air purifier do you need for an HDB room?
Work out the right air purifier size for an HDB bedroom or living room. CADR explained in plain English, with worked examples and a free calculator.
- HEPA, ionizers and ozone: what is actually cleaning your air?
HEPA, ionizer, UV or ozone? What each air purifier technology does, what "HEPA-type" really means, and which marketing terms to ignore when you shop.
- Buying an air purifier from AliExpress in Singapore: what to check first
Thinking of buying an air purifier on AliExpress? Plug type, GST, delivery, filters and red flags in listings: a Singapore buyer checklist before you pay.
- Your haze season checklist: do it before the PSI app turns orange
A practical haze checklist for Singapore homes: what to prepare, how to set up windows, air-con and purifier, and what to check before you head out.
- Car air purifiers and haze: what actually helps
Do car air purifiers work during haze? What helps in a Singapore car cabin, what a plug-in purifier can realistically do, and what to check before buying.
- PM2.5 monitor or air purifier: which one first?
PM2.5 monitor or air purifier first? What each does, how to read a cheap monitor, and how to use both to check your purifier is working in Singapore.