In cleanrooms, surface moisture is a contamination event. This article defines non-wetting humidification, explains the droplet physics behind it, and identifies the compliance standards that make method selection a regulatory decision, not a preference.

Ido Goldstein
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.
How to Test Indoor Air Quality for Mold in Commercial Facilities
Mold testing in commercial buildings involves multiple methods, regulatory considerations, and post-remediation verification steps that residential-focused guides overlook. This article covers the full commercial testing process, from spore sampling to clearance standards and humidity-based prevention.
How Does Low Humidity Affect Patient Recovery in Healthcare Settings?
Low indoor relative humidity compromises mucociliary clearance, slows wound healing, and increases pathogen transmission in healthcare settings. This article maps the specific physiological effects of low humidity to recovery outcomes by clinical zone, with ASHRAE compliance thresholds for facility engineers and infection control teams.
What Is an In-Duct Humidifier? How It Integrates with Commercial HVAC
An in-duct humidifier is a unit mounted inside an AHU or duct section to add moisture directly to the airstream. This article explains how it works, which technology types are used commercially, and what integration requirements govern proper installation.
What Is an Air Handler? How Humidity Fits in Commercial HVAC
An air handler is the indoor unit of a commercial HVAC system that conditions and circulates air through a building. This guide explains its core components, how it works, and where humidification integrates within the AHU for commercial facilities.
How Does Humidity Reduce Hospital-Acquired Infections? The Research
Peer-reviewed research links relative humidity in the 40-60% RH range to measurable reductions in hospital-acquired infection risk. This article explains the biological mechanisms, the specific pathogens affected, and the regulatory standards that make humidity control a compliance obligation in healthcare facilities.
How Does Humidity Prevent Static in Server Rooms?
Humidity prevents static in server rooms by allowing ambient moisture to form a thin conductive film on surfaces, enabling charge to dissipate continuously rather than build to damaging discharge levels. This guide explains the physical mechanism, the industry-accepted safe range of 40 to 60% RH, and how humidity control fits within a complete ESD protection strategy.
What Humidity Levels Does Pharmaceutical Manufacturing Require?
Pharmaceutical manufacturing requires tightly controlled relative humidity levels that vary by process area, dosage form, and regulatory classification. This guide covers specific RH thresholds for tablet compression, capsule filling, powder handling, lyophilization, and aseptic environments, with GMP compliance and validation context.
How Does Evaporative Cooling Reduce Data Center Energy Costs?
Evaporative cooling reduces data center energy costs by replacing or supplementing mechanical refrigeration with heat rejection through water evaporation. This article covers cooling types, PUE and WUE trade-offs, climate suitability, and the compliance costs that affect total savings.
How to Add Humidification to a Commercial HVAC System
Adding humidification to a commercial HVAC system involves more than selecting a unit. This guide covers installation method selection, absorption distance calculations, BMS integration, and humidity compliance requirements for commercial facilities.












