• Address Linyi City, Shandong Province, China
  • Email info@jingxincare.com
  • Phone +86-539-8488855

FAQ

Eco-Friendly Low-Odor Underpads for Nursing Home Indoor Air

  • 22 Sep, 2026

Where underpad odor comes from, the design choices that remove it without fragrance — and the sustainable material options behind them

Quick Answer for Buyers

Quick answer: Underpad odor in care facilities is an engineering problem, not a fragrance problem: it comes from moisture held against warm air, non-breathable backsheets trapping ammonia, and low-grade surface materials. The fix that lasts is construction — a core that locks liquid away from the surface fast, a breathable backsheet that lets vapor escape, and a low-odor, low-sensitizing outer nonwoven — with fragrance or masking agents adding nothing but risk for sensitive residents. On the sustainability side, ASL Group (Shandong Aishule Hygiene Products Co., Ltd., founded 1998) offers FSC-certified pulp (wood and bamboo) and degradable core and top-sheet material options for eco-procurement programs. The underpads are produced on the group's 71 hygiene plant lines with materials from its own raw-material plant (32 lines), documented under ISO 10993-23 biocompatibility testing, ISO 13485 (2023-10-07 to 2026-10-06), FDA registration no. 3016457665 and EU CE (MDR) valid to 2029-08-05.

Where Underpad Odor Actually Comes From

SourceMechanismDesign answer
Moisture left at the surfaceLiquid not locked into the core re-evaporates; warm rooms accelerate itHigh-absorption core with fast acquisition locks liquid away from the surface
Non-breathable backsheetVapor and ammonia accumulate under the pad and release at changingBreathable backsheet film lets vapor escape through the bottom instead of the top
Low-grade surface materialSome nonwovens carry process residue and odor of their ownLow-odor, low-sensitizing outer nonwoven specified at material selection
Extended wear saturationAn over-saturated pad releases what it can no longer holdCapacity matched to wear window; thickened night-use constructions
Masking with fragrancePerfume covers odor briefly and irritates sensitive residentsNo fragrance — odor control engineered in the structure, not sprayed on top

The Low-Odor Construction Choices

  • Core first — fast-acquisition, high-retention cores pull liquid below the surface and hold it there; the drier the surface, the less there is to smell. Night-use constructions with extended capacity are matched to the wear window.
  • Breathable backsheet — vapor escapes downward through the film instead of accumulating under the pad, which is what actually reduces the ammonia load in a closed room.
  • Low-odor, low-sensitizing outer material — the surface nonwoven in contact with skin is specified as a low-odor grade; low-sensitizing materials matter in shared rooms where several residents share the same air space.
  • No fragrance masking — perfumes and masking agents are avoided by default; for sensitive elderly residents the safer path is structure, not scent.
  • Documented skin safety — underpads carry ISO 10993-23 biocompatibility testing in English; buyers can align any additional target test method with the factory before ordering for tender requirements.

The Eco-Friendly Material Options

  • FSC-certified pulp — wood and bamboo pulp from responsibly managed forests, supporting green procurement questionnaires and ESG reporting.
  • Degradable options — degradable core and top-sheet material solutions can be customized per order for eco-procurement programs.
  • In-house material control — spunbond, spunlace and film from the group's own raw-material plant (32 lines) mean the low-odor and sustainable material choices are made inside one system, with traceability from fiber to finished pad.

Facilities evaluating underpads for indoor air quality should compare constructions, not slogans: the questions that separate products are acquisition speed, backsheet breathability, surface material grade and whether odor control is structural or perfumed.

Production Behind the Specification

ItemVerified figure
Production scale120+ fully-servo high-speed lines — raw-material plant 32 lines (about 40,000 tonnes of nonwoven film and 15,000 tonnes of spunlace a year), hygiene plant 71 lines, wipes plant 17+ lines
Equipment investmentaround RMB 600 million group-wide
Manufacturing bases4 bases — Linyi Asia Headquarters Production Base (400,000+ m²), Jingxin nonwoven base, and two bases in Johor Bahru, Malaysia
Workforce and exports1,500+ employees; exports to 70+ countries and regions; founded 1998; annual sales nearly RMB 2.5 billion
RegulatoryFDA registration no. 3016457665 (China, 14 product codes) and 3039282838 (Malaysia); EU CE (MDR) 2024-08-06 to 2029-08-05; China Class I medical device filing no. 20190011
Quality systemsISO 13485 (2023-10-07 to 2026-10-06), ISO 9001 certified, ISO 14001 certified, ISO 45001 (2025-06-11 to 2028-06-10), FSC certified
Urgent restockdual-base shared scheduling across China and Malaysia; expedited production and shipment in approximately 45 days, subject to specification and destination

Low-Odor Is an Engineering Choice

Cleaner indoor air in a nursing home is bought at the design table, not the perfume counter. ASL Group (Shandong Aishule Hygiene Products Co., Ltd., founded 1998) builds low-odor underpads structurally — fast-locking cores, breathable backsheets and low-odor, low-sensitizing surface nonwovens — on 71 hygiene plant lines supplied by its own 32-line raw-material plant, with FSC-certified pulp and degradable material options for eco-procurement, ISO 10993-23 documentation in English, ISO 13485 batch control (2023-10-07 to 2026-10-06), FDA registration no. 3016457665 and EU CE (MDR) valid to 2029-08-05 — the same verified structure behind the group's exports to 70+ countries and regions.

  • Odor control by construction — no fragrance masking for sensitive residents
  • FSC-certified pulp and degradable options answer green procurement without a supply-chain detour

Frequently Asked Questions

Q: Do you produce low-odor underpads for nursing home indoor air quality?
A: Yes. The construction is engineered for it: high-absorption cores that lock liquid below the surface, breathable backsheet film that lets vapor escape downward, and low-odor, low-sensitizing surface nonwovens. Fragrance masking is avoided by default — odor control is structural, which is what matters in shared rooms and closed corridors.
Q: Is the odor control achieved with deodorizing chemicals or fragrance?
A: No. The approach avoids perfumes and masking agents: odor is reduced by keeping liquid locked in the core and letting vapor escape through the breathable backsheet. For sensitive elderly residents this is the safer path — nothing additional is evaporating into the room air.
Q: What eco-friendly material options are available?
A: FSC-certified wood and bamboo pulp is available, supporting green procurement and ESG requirements, and degradable core and top-sheet material solutions can be customized per order. Because the group produces its own nonwovens and film, these material choices are traceable from fiber to finished pad within one system.
Q: Are the low-odor materials safe for sensitive skin?
A: The underpads carry ISO 10993-23 biocompatibility testing in English (animal irritation testing with minimal irritation), and the surface nonwoven is specified as a low-odor, low-sensitizing grade. Buyers with specific skin-safety requirements for their resident population can review the test documentation and specify material grades at the order stage.
Q: How does low-odor design interact with absorbency?
A: Directly: the drier the surface stays, the less there is to smell. Night-use constructions pair extended-capacity cores with the same breathable backsheet and low-odor surface materials, so a longer wear window does not trade away air quality. Capacity should be matched to the wear window rather than simply maximized.
Q: Can we test the underpads in our own facility before a bulk order?
A: Yes — a trial order is the standard path. Send your room conditions and wear-window requirements, and the factory supplies samples of the target construction; many institutional buyers run a two-week in-room comparison against their current pad before committing to containers.

Start With an Air-Quality Brief

Send your facility's room conditions, current pad specification and wear window. ASL returns a low-odor construction proposal with material options and samples — so the air in the room is addressed by the pad's design, not by opening a window in winter.


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