5 ms·

This seems ripe for placebo. Installing purifier and indeed measuring lower PM, means naturally you feel less worried and more relaxed!

• coldtea 7y ago
  On the other hand, measuring lower PM is indeed a quantifiable metric.
  • mc3 7y ago
    Yeah it depends what question you are trying to answer: 1. Does my air purifier filter out PM2.5? or 2. Dos lower PM2.5 make me sleep better? For #1 there is no placebo effect (there is no human element!)
• AstralStorm 7y ago
  It's time to hire someone to maybe break the filter somewhen for a duration. And hack the meter to report invalid data.
  • insickness 7y ago
    I've always thought it would be an interesting service where someone did this with medication/supplements. They sent you supplies of both the real and sugar pill meds for a certain duration and you recorded how you felt.
    • saagarjha 7y ago
      Generally, denying people access to healthcare in for the sake of experimentation is unethical.