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.
Humidity control in hospitals is governed by ASHRAE 170 and enforced through Joint Commission surveys. This guide covers the clinical, regulatory, and engineering reasons why RH levels must be maintained by room type, and what happens when they are not.
A temperature-indexed relative humidity reference chart segmented by environment type, from home comfort and healthcare to cold storage and electronics. Includes ASHRAE compliance thresholds and guidance on what happens when humidity falls outside the target range.
No single cooling method is best for every data center. This comparison covers air cooling, chilled water, DX, rear-door heat exchangers, direct liquid cooling, immersion, and free cooling, mapped to PUE benchmarks, rack density thresholds, and real-world retrofit constraints.
Dry indoor air causes more than chapped skin. Below 30% RH, it triggers static discharge, degrades materials, strains respiratory health, and creates measurable operational risk in industrial facilities. This article covers the full spectrum of dry air damage and what the thresholds actually mean.
ASHRAE TC9.9 recommends 40 to 60% relative humidity for data centers, with an allowable envelope of 20 to 80% RH. This guide explains the standards, failure modes from both extremes, and how to keep server rooms within compliant ranges.
Operating room humidity requirements are governed by ASHRAE Standard 170 and the FGI Guidelines, which set the accepted range at 20 to 60% RH for acute care ORs. This article explains which standards apply to which facility type, how to resolve conflicts between overlapping codes, and what humidity monitoring and documentation practices are required for accreditation compliance.
Humidity in cleanrooms is not just an environmental preference, it governs particle behavior, electrostatic discharge risk, and microbial growth. This guide explains the science, maps ISO 14644 and GMP requirements to specific RH thresholds, and covers what precision humidity control looks like in practice.
Hospital humidity requirements vary by space type and are governed by ASHRAE 170-2021, NFPA 99, and Joint Commission standards. This guide breaks down the required RH ranges for operating rooms, ICUs, sterile processing departments, and other clinical zones, along with the compliance and safety consequences of falling outside those thresholds.
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.
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.
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