Why You Need a Humidity Checker Today
Humidity is invisible, yet it has a powerful effect on your comfort, health, and even the condition of your home. Too much moisture in the air encourages mould growth, triggers allergies, and damages furniture. Too little humidity leads to dry skin, irritated sinuses, and uncomfortable living conditions. The easiest way to stay in control? A humidity checker. Whether you call it a hygrometer, humidity sensor, or indoor comfort monitor, it gives you accurate readings so you can make quick adjustments and protect your home.
What is a humidity checker?
A humidity checker is a simple device that measures the relative humidity (RH) inside your home. It’s also known as a hygrometer or humidity sensor.
Two main types are available:
Analog hygrometers – traditional dial-style tools that give a rough estimate.
Digital hygrometers – modern versions with LCD displays, often offering more accuracy, memory, or smartphone connectivity.
By reading RH as a percentage, they help you see when your indoor environment is too dry, too damp, or just right.
Why monitoring humidity matters
Monitoring indoor humidity isn’t just about comfort, it's about wellbeing and protecting your home.
Health:
High humidity above 55 to 60% RH encourages mould, dust mites, and allergens.
Low humidity below 30% RH dries out skin, eyes, and sinuses, and may worsen respiratory issues.
Comfort:
Humidity affects how warm or cool a room feels. Dry air can make winter feel colder, while damp air makes summer heat harder to tolerate.
Home Protection:
Excess humidity can warp wooden floors, damage furniture, and cause paint to peel.
Dry air can crack wood and shrink caulking.
The EPA recommends keeping indoor humidity between 30–50% RH for best comfort and safety.
How a humidity checker works
Modern humidity checkers use different types of sensors to convert moisture levels into readings:
Capacitive sensors – measure changes in electrical capacity as air moisture changes.
Resistive sensors – detect changes in electrical resistance caused by humidity.
Thermal sensors – calculate absolute humidity by comparing temperature differences.
Most digital hygrometers combine these technologies for fast, accurate readings, often within ±2 to 3% RH accuracy.
Choosing the right humidity checker
When buying a humidity checker, keep these factors in mind:
Accuracy: High quality models offer accuracy of ±2 to 3% RH. Cheaper devices may only give ±5% RH, which can make a big difference.
Placement: For best results, place your checker at mid-room height, away from direct sunlight, heaters, vents, or corners that may skew readings.
Features: Look for clear digital displays, comfort icons (showing dry/normal/humid ranges), memory or logging functions, smartphone connectivity, and calibration options.
Simple ways to check indoor humidity
The best way is to use a hygrometer. But if you don’t have one yet, here are a few quick (though less accurate) methods:
Ice cube test: Place a glass of water with ice cubes in a room for a few minutes. If condensation forms on the outside, humidity may be high. If there’s no condensation, the air may be too dry.
Wet and dry bulb test: A more old-fashioned but useful way to measure relative humidity using two thermometers, one wrapped in a wet cloth.
Phone apps: While convenient, most only pull data from outdoor weather services, not your actual indoor conditions.
What to do with the results
Once you know your home’s humidity levels, here’s how to respond:
If humidity is too high:
Run exhaust fans or improve ventilation.
Use a dehumidifier.
Fix leaks and reduce moisture sources like drying clothes indoors.
If humidity is too low:
Run a humidifier.
Add houseplants, which naturally release moisture.
Place bowls of water near heating sources for gentle evaporation.
The sweet spot is 30 to 50% RH, balancing comfort, health, and home protection.
Benefits at a glance
A humidity checker can improve life at home in many ways:
Better health: fewer respiratory issues, reduced risk of mould.
Increased comfort: stable indoor air that feels warmer in winter and cooler in summer.
Stronger home integrity: protection for wood, furniture, and paintwork.
Greater energy efficiency: optimised HVAC use by avoiding unnecessary heating or cooling.
Why you need one today
Humidity is silent and invisible, but its effects are real. A simple, affordable humidity checker gives you the power to take control. By keeping your home within the recommended 30 to 50% RH range, you can improve your health, feel more comfortable, and protect your home.
Ready to take control of your home’s comfort and health? Contact us and start monitoring your air today!