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1. Mechanical defects, sources of contamination, impediments to creating a healthy environment 32] May 24, 2019 Let’s get on with the job of eliminating R22 [CFC’s] and its replacement 410a [HFC’s] 31] May 22, 2019 Chemicals in cars, interior air quality is not good 30] May 22, 2019 Air quality problems in UK homes 29] May 7, 2019 The importance of having enough air changes to avoid a build-up of CO2 levels 28] May 2, 2019 Gaz stoves in houses without continuous air changes [at the very least] compromises indoor air quality 27] April 18, 2019 Microplastic particles are also ...