Fwiw, I use Ikea’s air quality monitor which is crazy affordable. I use it together with 3M Aircon filter which is the most affordable way for me to not breath in the crazy pollution here. Without it, my Ikea says it’s all least Delhi pollution level bad. Without knowing that I installed it, my roommate noticed the air smelled way fresher. For me, I feel sharper and less “stuffy/groggy” but maybe it’s just a placebo effect.
Fwiw, I use Ikea’s air quality monitor which is crazy affordable. I use it together with 3M Aircon filter which is the most affordable way for me to not breath in the crazy pollution here. Without it, my Ikea says it’s all least Delhi pollution level bad. Without knowing that I installed it, my roommate noticed the air smelled way fresher. For me, I feel sharper and less “stuffy/groggy” but maybe it’s just a placebo effect.