screenshot of HCHO (formaldehyde) daya on Sunday. The chart has low points where we vent the air, then sharp spikes up, a low curved area, another sharp spike when air moves again, and then a sharp decrease. this happens repeatedly. it gives the illusion of a cat's head over and over. i've drawn on in mark up pink cat faces with different expressions. The HCHO at the time of the screenshot is 0.025 mg per square meter and the temp was 107°. the VOCs are "2" because they use a shitty arbitrary scale