What level of CO is acceptable?

0-9 ppm CO: no health risk; normal CO levels in air. 10-29 ppm CO: problems over long-term exposure; chronic problems such as headaches, nausea. 30-35 ppm CO: flu-like symptoms begin to develop, especially among the young and the elderly.

What should CO levels be in house?

Average levels in homes without gas stoves vary from 0.5 to 5 parts per million (ppm). Levels near properly adjusted gas stoves are often 5 to 15 ppm and those near poorly adjusted stoves may be 30 ppm or higher.

What is a safe level of CO2 in the home?

Ventilation should keep carbon dioxide concentrations below 1,000 ppm and create indoor air quality conditions that are acceptable to most individuals.

What is a safe ppm for CO2?

OSHA has established a Permissible Exposure Limit (PEL) for CO2 of 5,000 parts per million (ppm) (0.5\% CO2 in air) averaged over an 8-hour work day (time-weighted average orTWA.)

How many ppm is safe for carbon monoxide?

50 parts per million
OSHA Carbon Monoxide Exposure Limits The OSHA personal exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period.

What is a good CO2 level?

22 to 29 mmol/L
Normal values in adults are 22 to 29 mmol/L or 22 to 29 mEq/L. Higher levels of carbon dioxide may mean you have: Metabolic alkalosis, or too much bicarbonate in your blood. Cushing disease.

What does a CO2 level of 33 mean?

A normal result is between 23 and 29 mmol/L. A low CO2 level can be a sign of several conditions, including: Kidney disease. Diabetic ketoacidosis, which happens when your body’s blood acid level goes up because it doesn’t have enough insulin to digest sugars. Metabolic acidosis, which means your body makes too much …

Do carbon monoxide detectors detect low levels?

Do Low Level Carbon Monoxide Detectors Detect Low Levels? Yes, they do. A typical CO detector alarms at 70 ppm after 60 minutes. A low level carbon monoxide detector will alarm at 25 ppm after 60 seconds.

Should a carbon monoxide detector be high or low?

Because carbon monoxide is slightly lighter than air and also because it may be found with warm, rising air, detectors should be placed on a wall about 5 feet above the floor. The detector may be placed on the ceiling.