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This cylindrical humidifier filter is a water-spray type evaporative media that draws water upward through capillary action and releases moisture as air passes through its pleated honeycomb structure. It filters out calcium and magnesium ions from the water to help prevent white dust, while its antibacterial and mould-resistant treatment keeps the water tank free from odours. It is designed for residential evaporative humidifiers, premium air purifiers with humidification, and industrial constant-temperature and humidity equipment. Ranveth manufactures this filter with 100% OEM customisation for dimensions, pleat count and coatings.
The performance of a water-spray humidifier filter depends on how the water-absorbing media is paired with the air path. Ranveth uses two core media options: high-absorption humidifier paper and polymer humidifier fibre. Both are formed into a dense pleated honeycomb structure that creates a large evaporation surface within a compact cylinder. The pleats are engineered to hold their shape even when fully saturated, so the filter does not collapse or delaminate during long immersion in the water tray.
This pairing drives three practical outcomes. First, the capillary effect pulls water quickly into the media and spreads it across the entire pleat height, giving strong and even evaporation. Second, the open honeycomb channels keep airflow resistance low, so the humidifier’s fan does not have to work harder as the filter loads with water. Third, the combination of high wet stiffness and antibacterial treatment extends service life by resisting sagging, mould growth and the sour odour that often comes from stagnant water. For buyers, the result is a filter that maintains output over months of use rather than losing efficiency after a few weeks.
| Item | Detail |
|---|---|
| Product name | Cylindrical humidifier filter / air purifier humidification core |
| Core humidification media | High-absorption humidifier paper or polymer humidifier fibre |
| Core performance | Strong capillary water absorption and water molecule evaporation; intercepts calcium and magnesium ions in water (blocks white powder); long-acting antibacterial and mould-resistant; removes water tank odours |
| Physical structure advantage | Dense pleated honeycomb process provides a very large evaporation area; extremely high wet stiffness; does not collapse or fall apart during long-term immersion in the water tank |
| Main application terminals | Household cold evaporation fog-free humidifiers, high-end air purifiers with humidification function, industrial constant-temperature and constant-humidity equipment |
| Specification and size customisation | 100% OEM flexible custom manufacturing. Outer diameter, inner diameter, height, pleat count of the cylinder, and whether an anti-mould antibacterial coating is needed can all be precisely manufactured according to drawing requirements. |
| Quality certification system | Manufactured in the company's 50,000 m² modern clean plant; the company has passed ISO 9001/14001 and IATF 16949 international quality management system certifications and has a national-level CNAS testing laboratory controlling quality. |
This filter is specified for three main equipment categories. In household cold-evaporation fog-free humidifiers, the cylindrical shape fits directly into the water tray and provides consistent moisture output without leaving white dust on furniture. In high-end air purifiers that include a humidification function, the filter adds humidity control to particle filtration, and its antibacterial treatment helps keep the combined unit fresh. In industrial constant-temperature and constant-humidity equipment, the filter supports stable humidity levels for processes or storage that require a controlled environment.
Because the media resists sagging and maintains its pleat geometry when wet, it is also suitable for applications where the filter stays in contact with water between cycles. Buyers who need a specific outer diameter, inner diameter, height or pleat count can have the cylinder built to their drawing, including optional antibacterial coatings for markets where odour control is a priority.
To quote a custom cylindrical humidifier filter accurately, we need the following information:
With these details, our engineering team can confirm the suitable media combination and provide a sample or production quote. If you are unsure about the pleat count or diameter, send a photo of the existing filter and the equipment model, and we will help define the specification.
Ranveth backs its media choices with testing. Our in-house laboratory is accredited by CNAS (China National Accreditation Service for Conformity Assessment) and can issue reports for filtration efficiency, dust holding capacity and resistance, so the media pairing in your filter is supported by measured data rather than assumption.
Production takes place in a 50,000 m² manufacturing base in Zhongshan, Guangdong, China, which includes six cleanrooms totalling 20,000 m². The company has passed IATF 16949 (achieved in 2024) and holds ISO 9001, ISO 14001 and ISO 45001 certifications. Products comply with REACH and RoHS environmental regulations, and compliance documents are available on request. With more than 20 years of filtration product development and manufacturing experience, Ranveth has supplied customers in Europe, the United States, Japan and South Korea for over two decades. We support OEM/ODM projects for size, structure, media grade, frame material, logo and packaging, and have developed more than 1,000 filtration solutions. Multiple automated production lines give a monthly capacity of millions of pieces, and quality control follows IQC, IPQC and OQC throughout the process.
To discuss your humidifier filter requirements, please send your device model, required dimensions or drawing, airflow or water flow, operating conditions and order quantity through our contact page. Our team will respond with a recommendation on media pairing and a quote for samples or production. Visit our contact page to start the conversation.
It uses high-absorption humidifier paper or polymer humidifier fibre, formed into a dense pleated honeycomb cylinder. This pairing provides strong capillary water absorption and a large evaporation area, while the high wet stiffness keeps the pleats from collapsing during long immersion.
The filter achieves a humidification efficiency of over 85% under standard conditions. Service life is typically 6 to 12 months, depending on water quality and usage frequency. The antibacterial and mould-resistant treatment helps maintain performance and reduces odour over that period.
Yes, we offer 100% OEM custom manufacturing. You can specify the outer diameter, inner diameter, height, pleat count and whether an antibacterial coating is required. Send a drawing or a sample of your existing filter and we will build to your dimensions.
Contact us with your device model, required dimensions or drawing, airflow or water flow, operating conditions and order quantity. We will confirm the suitable media and provide a sample and production quote. Standard samples are available; custom samples may involve a sampling fee that is refundable against mass production.
Standard specifications typically have an MOQ of 3,000 pieces or more, depending on the size. Custom products generally start at 5,000 pieces. For large or long-term orders, we can discuss flexible stocking arrangements.
Standard products ship in 7 to 15 days. Custom sampling takes 7 to 10 days, and mass production lead time is 30 to 45 days after sample approval. These times may vary with order volume and material availability.
Under normal use, replace the filter every 6 to 12 months. Factors such as hard water, continuous operation or visible scaling can shorten the interval. The antibacterial treatment helps extend usable life, but regular inspection is recommended to maintain humidification efficiency.
Yes, the media intercepts calcium and magnesium ions from the water, which helps prevent white powder from being released into the air. The long-acting antibacterial and mould-resistant treatment also reduces the sour odours that can develop in water tanks. For enhanced protection, an optional antibacterial coating is available.
