CO Alarm Levels show the CO concentration in your house. It is really important to learn what each level means to keep air safety.
What Are Normal Carbon Monoxide Levels In A House?
In general, the CO alarm levels in the room should be very low. Under normal circumstances, the concentration of carbon monoxide in the indoor air should be close to zero. This is because carbon monoxide is a colorless, inodore, toxic gas that is harmful to the human body. To ensure safety, indoor carbon monoxide levels should be kept at very low levels. If a source of carbon monoxide is present in the room, such as fuel that is not fully burned, then the concentration of carbon monoxide may be elevated, which is very dangerous. Donc, measures should be taken to ensure that indoor carbon monoxide concentrations remain at safe levels.
What Is A Safe CO Alarm Level?
The World Health Organization sets standards for carbon monoxide concentrations in indoor air. Specifically, it recommends: First, the average concentration of carbon monoxide must be kept below nine parts per million (ppm) for any consecutive eight-hour period. Deuxième, in any one hour period, the concentration should be less than 25ppm. If the exposure time is not more than 15 minutes, the concentration can even be as high as 90-100 PPM. By the way, it’s important to understand that a ppm is defined as one part carbon monoxide per million parts in the air.
What Level of CO Is Acceptable?
The National Institute for Occupational Safety and Health (NIOSH) sets clear recommended exposure limits (REL) for carbon monoxide. First, for an 8-hour time-weighted average concentration (TWA), NIOSH sets a REL of 35 ppm (40 mg/m³). Deuxième, for the maximum allowable concentration, NIOSH sets REL at 200ppm (229mg/m³) [NIOSH 1992]. En outre, NIOSH established this limit based primarily on the possible risk of carbon monoxide to the cardiovascular system.
What Carbon Monoxide Levels Will Sound the Alarm?
Carbon monoxide sensors must comply with the UL2034 standard developed by Underwriters Laboratories, which sets specific sensitivity requirements for single – and multi-station carbon monoxide alarms. Based on these requirements, we can learn that: First, the standard carbon monoxide sensor has a certain sensitivity threshold. Deuxième, this threshold is usually set at 30 ppm, which means that at concentrations below 30 ppm, the sensor usually does not sound an alarm.
FAQ
What Does L6 Mean on A Carbon Monoxide Alarm?
L6 does not mean the concentration of Carbon Monoxide at Level 6. When the L6 indicator is on, the device battery is low (Lb). At this point, the device needs a new battery. En outre, it is important to note that even if the device is plugged in, the battery needs to be replaced within a certain period of time. Specifically, this time period is usually every 6 months to 1 année.
