...

5 Signs of Low Indoor Humidity to Look For

Low indoor humidity is a serious problem that affects the health and comfort of workers. Forcing employees to work in an exceptionally dry environment may result in illness (among other things). But how exactly do you know if the air is dry? Here are a few things to check for:

#1) Electrostatic Discharge

Offices and other indoor environments with a low relative humidity (RH) are more likely to experience electrostatic discharge (ESD). Feeling a brief shock when you touch a doorknob may seem harmless enough, but ESD can cause significant damage to computers and other electronics. It only takes a miniscule amount of electricity to fry a computer, which is why it’s important to maintain a proper humidity level in the office.

#2) Feeling Dehydrated and Thirsty

Another sign of low humidity is dehydration paired with a desire to drink. This is due to the fact that dry air literally sucks the moisture from your body. Prolonged exposure to environments with a low RH can deplete a person’s body fluids, making them feel dehydrated and thirsty. Of course, dehydration can lead to a whole world of unrelated problems.

#3) Feeling Cold

We’ve talked about this before on our blog, but it’s worth mentioning again that dry air makes you feel colder than the thermostat indicates. Exposure to low humidity will evaporate the sweat and moisture on your body, leaving you exposed to the elements. Workers in environments with low humidity often complain about feeling cold, even if the thermostat is to set to a proper temperature.

#4) Nose Bleeds

It’s a little-known fact that low humidity contributes to nose bleeds. The dry air causes the moisture in the mucus membranes to evaporate, at which point they begin to crack. Depending on the severity of the problem, this cracking can lead to open wounds that bleed. Not only is this painful, but it can also serve as an entry point for bacteria and virus.

#5) Damaged Furniture

A fifth and final sign of low indoor humidity is damaged furniture. Assuming the furniture is made of wood, it will expand and contract depending on the surrounding relative humidity. When the air is moist, wood furniture will expand as it absorbs the moisture. When the air is dry, it will shrink as it releases the moisture back into the air. Some shrinking and expanding is normal, but wood furniture that’s exposed to dry air over long periods of time may show signs of damage, such as cracking or warping.

Consult a Humidity Expert

You might also be interested in…

ESD Protection: A Complete Guide to Protecting Electronics from Static Damage

ESD Protection: A Complete Guide to Protecting Electronics from Static Damage

ESD protection is essential for preventing static electricity from damaging sensitive electronic components during manufacturing, handling, and storage. This guide explains how grounding, ionization, humidity control, protective packaging, and facility design work together to reduce electrostatic discharge risks and create a comprehensive static control program.

read more
ESD System Installation: Planning, Setup, and Commissioning Guide

ESD System Installation: Planning, Setup, and Commissioning Guide

ESD system installation requires careful coordination of grounding infrastructure, humidity control, conductive flooring, and supplemental protection methods to create reliable static control throughout manufacturing facilities. This guide outlines the planning, installation, commissioning, and compliance verification steps needed to build an integrated ESD protection system that meets ANSI/ESD S20.20 requirements and supports long-term production reliability.

read more
ESD Damage: What It Costs, How It Happens, and How to Prevent It

ESD Damage: What It Costs, How It Happens, and How to Prevent It

ESD damage costs electronics manufacturers billions each year, with most failures remaining hidden until products reach the field. Learn how electrostatic discharge occurs, why low humidity increases risk, and the most effective methods for preventing costly component failures and warranty claims.

read more

Chief Technology Officer at Smart Fog

Author

Ido Goldstein is a technology innovator with deep expertise in humidity engineering, climate control, and non-wetting fog systems. He has spent years advancing energy-efficient and water-smart solutions that help industries like cleanrooms, data centers, wineries, and greenhouses maintain precise environmental control.

Passionate about technology with real-world impact, Ido also supports sustainable agriculture initiatives and nonprofit innovation. Through this blog, he shares practical insights on HVAC advancements, indoor air quality, and the science behind high-performing environments.