ACEIRMC 5pcs MQ4 MQ-4 Methane Gas Sensor Natural Coal Co Methane Detector Module for Arduino Raspberry Pi ESP8266 MQ4 5V DC MQ-4
Input voltage : DC5V Power consumption ( current ): 150mA.
DO output : TTL digital 0 and 1 ( 0.1 and 5V).
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V.
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the....
MQ-4 Methane gas sensor of high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a variety of combustible gases,....
Air Purifier for Home Large Room - Air Choice Smart Home Air Purifier 1485 Sq Ft, H13 True HEPA Bedroom Large Room Air Purifier, Clean 99.97% Hair, Dust, Smoke and Odor Eliminator
3 flexible fan speed modes are available for selection.
Ultimate Silent and Environmental-Friendly Feature.
The Sleep Mode of Bedroom Air Purifier is ideal for baby napping.
It provides a silent and comfortable environment.
It avoids the noise pollution by lowering the noise level down to 20dB.
By selecting the Auto Mode of the Bedroom Air Purifier, it can save up to 90% power consumption, User can select the preferred 1H/2H/4H/8H timer and fan speed adjustment.
Durable Performance with Smart Filter Replacement Reminder.
The filters of Air Purifier for Home is built with a durable performance, which lasts seasonally.
users will no longer need to worry the annoying replacement disturbance.
When the reset button becomes red, it is a signal for replacement.
All you need to do is to remove the previous one and insert the new one.
Filtrete 16x20x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack
Featuring high performing electrostatic technology, FiltreteHealthy Living filters proactively attract and capture microscopic particles, including: PM 2.5 air pollution, candle soot and smoke, cough and sneeze debris, bacteria and viruses along with large particles like lint, dust and pollen from air passing through the filter.
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through.
4 times better small particle capture compared to non-electrostatic pleated filters for the capture of 0.3 to 1.0 micron particles..
Outperforms fiberglass, washable and non-electrostatic pleated 1″ filters.
Microparticle Performance Rating MPR 1900 equates to Minimum Efficiency Reporting Value MERV 13.
Captures micro-particles including: PM 2.5 pollution, smoke, cough/sneeze debris, bacteria, viruses, and large particles like lint, dust and pollen.
Electrostatic air filter with Microparticle Performance Rating 1900.
Filtrete Healthy Living Air Filters include the following MPR (Microparticle Performance Rating) levels: 1500, 1550, 1900, 2200, 2400, and 2800.
Filtrete 14x14x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack
Featuring high performing electrostatic technology, FiltreteHealthy Living filters proactively attract and capture microscopic particles, including: PM 2.5 air pollution, candle soot and smoke, cough and sneeze debris, bacteria and viruses along with large particles like lint, dust and pollen from air passing through the filter.
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through.
4 times better small particle capture compared to non-electrostatic pleated filters for the capture of 0.3 to 1.0 micron particles..
Outperforms fiberglass, washable and non-electrostatic pleated 1″ filters.
Microparticle Performance Rating MPR 1900 equates to Minimum Efficiency Reporting Value MERV 13.
Captures micro-particles including: PM 2.5 pollution, smoke, cough/sneeze debris, bacteria, viruses, and large particles like lint, dust and pollen.
Electrostatic air filter with Microparticle Performance Rating 1900.
Filtrete 14x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack
Featuring high performing electrostatic technology, FiltreteHealthy Living filters proactively attract and capture microscopic particles, including: PM 2.5 air pollution, candle soot and smoke, cough and sneeze debris, bacteria and viruses along with large particles like lint, dust and pollen from air passing through the filter.
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through.
4 times better small particle capture compared to non-electrostatic pleated filters for the capture of 0.3 to 1.0 micron particles..
Outperforms fiberglass, washable and non-electrostatic pleated 1″ filters.
Microparticle Performance Rating MPR 1900 equates to Minimum Efficiency Reporting Value MERV 13.
Captures micro-particles including: PM 2.5 pollution, smoke, cough/sneeze debris, bacteria, viruses, and large particles like lint, dust and pollen.
Electrostatic air filter with Microparticle Performance Rating 1900.
Filtrete 14x30x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack
Featuring high performing electrostatic technology, Filtrete Healthy Living filters proactively attract and capture microscopic particles, including: PM 2.5 air pollution, candle soot and smoke, cough and sneeze debris, bacteria and viruses along with large particles like lint, dust and pollen from air passing through the filter.
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through.
4 times better small particle capture compared to non-electrostatic pleated filters for the capture of 0.3 to 1.0 micron particles..
Outperforms fiberglass, washable and non-electrostatic pleated 1″ filters.
Microparticle Performance Rating MPR 1900 equates to Minimum Efficiency Reporting Value MERV 13.
Captures micro-particles including: PM 2.5 pollution, smoke, cough/sneeze debris, bacteria, viruses, and large particles like lint, dust and pollen.
Electrostatic air filter with Microparticle Performance Rating 1900.
Filtrete 20x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack
Featuring high performing electrostatic technology, FiltreteHealthy Living filters proactively attract and capture microscopic particles, including: PM 2.5 air pollution, candle soot and smoke, cough and sneeze debris, bacteria and viruses along with large particles like lint, dust and pollen from air passing through the filter.
Designed with Filtrete Brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through.
4 times better small particle capture compared to non-electrostatic pleated filters for the capture of 0.3 to 1.0 micron particles..
Outperforms fiberglass, washable and non-electrostatic pleated 1″ filters. For residential use only.
Microparticle Performance Rating MPR 1900 equates to Minimum Efficiency Reporting Value MERV 13.
Captures micro-particles including: PM 2.5 pollution, smoke, cough/sneeze debris, bacteria, viruses, and large particles like lint, dust and pollen.
Electrostatic air filter with Microparticle Performance Rating 1900.
Techno - Supremely Versatile The most versatile mask available, providing excellent filtration against most types of pollution a cyclist is likely to encounter Uses a Dynamic Activated Charcoal Cloth filter to filter the worst of urban pollution Also uses a HepA-type filter to screen out sub-micron pollutants such as pollens and respirable dusts Includes two Techno valves to allow easier exhalation, which is particularly important as they release heat, water vapour and Carbon Dioxide Comes in two sizes, with a contoured shape for a good seal and comfortable fit and Velcro pads for easy application Made from hypo-allergenic Neoprene giving a comfortable and secure fit The filter is replaceable, and is designed to be effective for at least 1 month in normal daily use.
City - Urban Commuter A specially developed mask to provide City cyclists with broad spectrum filtration against pollution Uses a Dynamic Activated Charcoal Cloth to filter the worst of urban pollution Includes two Techno valves to allow easier exhalation, which is particularly important as they release heat, water vapour and Carbon Dioxide Comes in two sizes, with a contoured shape for a snug and comfortable fit and Velcro pads for easy application Made from hypo-allergenic Neoprene ....
Zen Lyfe Air Purifiers for Home Extra Large Room up to 2360 ft², Washable True HEPA Filter for Allergies and Pets Smokers Pollen Dust Mold Odors Dander, Auto Mode, 24dB, PM2.5 Monitor, White
... with Low Energy] - In AUTO Mode, the smart air quality sensor detect the air quality, adjusting the speed in real-time, the digital display reveals your air quality level, so you can always enjoy the fresh air. It only costs $ 1 a week to run the air purifiers 24/7, allowing you use it all day during times of high pollution, like wildfire season.
