Knives & Multitools

There are many reasons why people keep the windows closed in stuffy rooms: letting in cold air or insects, or simply forgetting to ventilate the room. This can result in elevated CO2 levels. Humidity is not only a concern for plant lovers. Without fresh air, rooms can get very stuffy, especially in closed spaces with lots of people. This can reduce the comfort level and affect your concentration. With the Bresser inv CO2 meter with an air quality data logger, you can keep a close eye on the indoor climate in your own four walls or in classrooms, offices and other rooms. The device features an easy-to-read LED screen that simultaneously displays the CO2 concentration, temperature and humidity.…