garaboncias

/** 

# CO2
//https://www.kane.co.uk/knowledge-centre/what-are-safe-levels-of-co-and-co2-in-rooms
//250-350ppm	Normal background concentration in outdoor ambient air
//350-1,000ppm	Concentrations typical of occupied indoor spaces with good air exchange
//1,000-2,000ppm	Complaints of drowsiness and poor air.
//2,000-5,000 ppm	Headaches, sleepiness and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.

# TVOC