Matched MERV 11 filtration for Leizig LG70, LG100, and LG150 R32 dehumidifiers — tool-free replacement.
The Leizig MERV 11 Replacement Filter (SKU 31800037) is the factory-matched service filter for Leizig LG70, LG100, and LG150 R32 dehumidifiers. MERV 11 rated per ASHRAE 52.2, it captures particles down to 1 micron — including mold spores and fine particulates — and installs without tools to minimize downtime during a filter change.
The Leizig MERV 11 Replacement Filter (SKU 31800037) is the designated service filter for the Leizig R32 dehumidifier line — specifically the LG70, LG100, and LG150 models. Leizig's R32 dehumidifiers are purpose-built for controlled environment agriculture: galvanized steel housings with corrosion-resistant surface coatings, low-noise operation, and high-efficiency filtration engineered for high-humidity grow environments where microbial pressure is constant.
This filter is the consumable that keeps that filtration system performing as designed. MERV 11 is rated under ASHRAE Standard 52.2, which means tested capture efficiency of 75–90% for particles in the 1.0–3.0 micron range — the size range that includes mold spores, fine particulate, and airborne biological matter relevant to licensed cannabis and hemp cultivation.
Any licensed operator running Leizig LG70, LG100, or LG150 dehumidifiers needs this filter on hand before they need it — not after. In a commercial flower room or propagation space, a clogged or degraded dehumidifier filter reduces airflow through the unit, cuts moisture removal efficiency, and lets fine particulate — including mold spores — pass through rather than being captured.
Facilities running multiple Leizig units across zones should track filter change intervals by room and keep a supply buffer. Preventive replacement is straightforward with a tool-free design; reactive replacement after a clog or environmental event means unplanned downtime. This filter is relevant to any facility scale running the LG70, LG100, or LG150 — from a single-zone licensed operator to a multi-room commercial build.
Grow rooms generate a specific airborne particulate profile: transpiration moisture, plant debris, fine powdery materials, and — in any facility that's run a cycle or more — a background load of fungal spores. MERV 11 filtration, rated per ASHRAE 52.2, captures particles in the 1.0–3.0 micron range at 75–90% efficiency. Mold spores typically fall in the 2–20 micron range, meaning MERV 11 is effective at intercepting the smaller end of that range at the dehumidifier intake before air recirculates through the canopy.
A lower-rated filter (MERV 8 or below) captures larger particles at lower efficiency and passes more of the fine biological load that matters in a licensed grow. MERV 11 is the standard Leizig specifies for the LG70/LG100/LG150 because it balances particle capture against airflow resistance — maintaining the unit's rated dehumidification output while protecting internal components from contamination.
The filter installs without tools — Leizig's R32 series is designed for accessible filter access to keep service intervals short and not require HVAC technician involvement for routine maintenance. The LG70, LG100, and LG150 cover Leizig's entry and mid-range commercial capacity units: 70 pints/day through 150 pints/day, suitable for smaller licensed rooms, propagation and veg spaces, or supplemental dehumidification in larger zones alongside higher-capacity units.
Replace on a schedule tied to your room environment — high-canopy-density rooms with active transpiration will load filters faster than lower-humidity spaces. Inspect the filter at each environmental audit. A visually dirty or physically deformed filter should be swapped regardless of interval. Keep at least one spare on-site per unit.
| SKU | 31800037 |
| Brand | Leizig |
| Filtration Rating | MERV 11 (ASHRAE 52.2) |
| Compatible Models | Leizig LG70, LG100, LG150 |
| Refrigerant Series | R32 |
| Capture Efficiency (1–3 µm) | 75–90% |
| Minimum Particle Size Targeted | ~1.0 micron |
| Installation | Tool-free |
| Application | Commercial cannabis / hemp grow rooms, CEA facilities |
| Catalog Category | Accessories — Lighting & Cultivation |
No. SKU 31800037 is matched specifically to the Leizig LG70, LG100, and LG150 R32 dehumidifiers. Larger Leizig units use different filter sizes and SKUs. If you're running LG228 or above, contact HSC to identify the correct replacement filter for your unit.
Leizig recommends periodic replacement as part of routine dehumidifier maintenance, but interval depends heavily on room conditions. High-canopy-density flower rooms with active transpiration and elevated particulate load will exhaust filters faster than propagation or veg spaces. Inspect at each environmental audit and replace on appearance or restriction — don't wait for a fixed calendar interval if the environment is demanding.
No. The Leizig LG70, LG100, and LG150 are designed for tool-free filter access. A facility technician or grow staff can change the filter without HVAC credentials or specialty tools.
A loaded or restricted filter is a common cause of reduced dehumidification output. As the filter captures particulate, airflow through the unit decreases, which reduces the unit's effective moisture removal rate even though the refrigeration system is still running. Regular filter replacement is the first thing to check when a unit appears to underperform its rated capacity.
Yes. HSC supplies licensed cannabis and hemp operators nationally. If you're running multiple facilities or multiple Leizig units across zones, reach out for a volume quote. Keeping a standing filter supply for each unit is standard preventive maintenance practice.
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