Tyler Cipriani’s bedroom chart lined up with cooking spikes and with a filter change. RevK’s kitchen went “off the scale” on particles while carbon dioxide also rose. Opening a window can drop carbon dioxide and can also bring roadside particles in. This publication has no reference mass instrument and no kitchen series, so no µg/m³ value here is written as calibrated.
What published event logs already show
Tyler Cipriani aligned a bedroom AQI chart with cooking and with a LEVOIT filter change at 2023-05-19T22:25 MDT. He named Plantower PMS5003 and wrote, citing literature, that the sensor is “in the right direction” and needs factory calibration before it approaches a dearer reference. He did not publish a reference-instrument table. RevK wrote that kitchen cooking sent particles off the scale and also raised carbon dioxide. Geerling wrote that PM2.5 passed 50 µg/m³ after window work and fell after opening a window and adding a fan.
Those timestamps and rooms are theirs. Wildfire narrative on a Colorado blog is not a default UK outdoor source.
Window and hob have to be written down
A falling carbon-dioxide number after a sash opens is a ventilation observation — HSE already treats carbon dioxide that way. The same opening can raise a laser PM channel if the street is the source. A rising PM channel with the hob on is a cooking event until proven otherwise. A single unlabelled curve cannot choose between those stories. The blank CSV therefore has window_state, hob_state and the three distance columns. Without those columns the file is only a strip of numbers.
What stays unclaimed
No mass concentration on this page is a calibrated µg/m³. Related shops that appear to sell a laser particle monitor are listed on the disclosure page; they are not used here as a reference. These pages publish no kitchen trend. A trend file would need the event log, the sensor type, and the sentence that the file is not a mass reference. Consumer particle readings are not a medical result.
Sources and scope
Sources checked on 23 September 2026. Numbered references point to the original publishers. Their sample measurements are not AirMeasure UK measurements. Manufacturer, tutorial and official material is identified separately.
- Tyler Cipriani, Monitoring my indoor air quality ↗29 May 2023. Bedroom AQI chart aligned with cooking spikes and with a filter change at 2023-05-19T22:25 MDT. Sensor named as Plantower PMS5003. The author cites literature that the sensor is “in the right direction” and needs factory calibration before it approaches a dearer reference. No reference instrument table is published there.
- RevK, Understanding CO₂ air quality better ↗Same author, 21 March 2019. Cooking sent particles “off the scale” and also raised carbon dioxide. A curtain-blocked window barely dropped the bedroom reading. The author questions treating a weekly minimum, or outdoor air, as a 400 ppm zero.
- Jeff Geerling, Monitoring my home’s air quality with AirGradient DIY ↗8 September 2021. Lists SenseAir S8, Plantower PMS5003 and SHT30. A basement office sat near 900 ppm with the vent open and passed 3000 ppm after hours with it closed. Case heat raised temperature and humidity. Automatic baseline calibration was written as needing about two weeks, during which carbon dioxide could read about 200 ppm high. Those figures are the author’s.
- HSE, Using CO2 monitors ↗UK workplace ventilation page. Prefers NDIR on a portable device; head height; more than 50 cm from people; away from doors, windows and supply vents. A single snapshot can mislead. Persistently above 1500 ppm is written as a sign of poor ventilation. In a room with an air cleaner, carbon dioxide does not stand in for ventilation. Workplace guidance, not a home health standard and not an instrument certificate.
No instrument in this note has been tested or certified by this publication. Evidence policy · Corrections
Write the conditions beside the reading.
The CSV has column headings and one empty row. It contains no fabricated sample readings.
Download air-quality event record ↓
