Alle Nachrichten

BG311384421 23/02/2022
I give 5x stars and I could recommend it because: - It is working very well and it seems very good value for money. I would definitely buy it again. - Very interesting results are for example by measurement of the breath. The face mask w/o exhaust you will probably never carry if not mandatory. - Wide tolerance 0-30% is practically not an issue. Important is to observe differences between different areas. e.g. : One area with windows has 0,2 TVOC, behind the doors in corridor is 6,0 TVOC – very dirty, and by the source of the pollution, which you could with this device identify (in this case it was machine for cleaning of the shoes with some chemistry inside) is 12,0 TVOC – totally crazy. - Small pocket size like old-school mobile phone. 12*6*2,5 cm. Quiet, discreet, no sound. - Display is good readable and is protected with foil. Charging with USB-C and battery is sufficient for enough long testing. - To test new car because of new materials / old car for potential leakage of exhaust in to the cabin. It is many purpose device. - From Banggood is any problem with EU taxes – already paid. - Fast delivery. Remark: After purchasing I started testing at home. It showed always the same result AQI 2 (Air Quality Index of 6x levels). I was thinking: "Maa maybe it does not work" however it was everywhere only almost clean air. Measurement of the breath shows very polluted air AQI 5-6 from scale which is max. 6! CO, CO2, HCHO (formaldehyde), same as the TVOC´s (Total Volatile Organic Compounds) What about crazy idea to breath our own “exhaust” in case it is not really necessary. Test in modern factory shows interesting results. In production halls with dozens of workers it was incredibly high ppm of the CO, CO2 and also the other values were very high. Total AQI was 4-6 (6 is max.). Corridors + better ventilated area were AQI 3. Near chemical production the TVOC incresed from 0,2 to 14,0 - 17,0 or more. Overall: the device is good and useful. I can recommend it.
1
Empfehlungen
Kommentar (0)