Easy⏱ timeDays$ cost3
Dust & Air Quality Test
Sticky cards around your home reveal where airborne dust and particles settle most.
Start building ↓
Result first
The build
Step 01
Coat the cards
Smear jelly on cards.
Step 02
Place around
Put labelled cards in different spots.
Step 03
Wait
Leave them for a few days.
Step 04
Count particles
Examine and compare under a magnifier.
Working Principle
Airborne particles stick to the greased cards; busier or dustier locations collect visibly more, revealing relative air quality.
The science behind it
A closer look
It's a passive sampler: particle counts indicate where dust sources and poor airflow concentrate pollution.
Take it further
Variables to test
- 1 Compare a road-facing vs indoor spot.
- 2 Which room is dustiest, and why?
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