How Type 4B/5B/6B Microporous Film Coveralls Are Becoming the Frontline Defense in Modern Livestock Biosecurity

As the global livestock industry continues to grapple with highly contagious pathogens—from African Swine Fever (ASF) and Avian Influenza (H5N1) to Foot-and-Mouth Disease—farm biosecurity has never been more critical. While disinfection baths and foot covers are visible staples of farm entry protocols, there is a silent guardian working just as hard: the protective coverall.

Industry experts and farm veterinarians are increasingly emphasizing that in an outbreak scenario—or even during routine high-risk operations—Type 4B, 5B, and 6B microporous film protective clothing offers the "gold standard" of defense for farmworkers and animal health alike.

The Invisible Enemy: Why Standard Gear Isn't Enough

In livestock farming, the threats are often invisible. Pathogens like the ASF virus (approximately 200nm in size) can survive in dust, manure, and bodily fluids. Workers moving between pens, rendering assistance during farrowing, or disposing of mortalities act as potential vectors.

Traditional cotton coveralls or even standard SMS suits face a specific challenge: "strike-through" and wet penetration. When exposed to blood, amniotic fluid, urine, or heavy disinfectant sprays, the protective barrier of standard fabrics can be compromised.

Enter Microporous Film Technology: A Physical Shield

This is where microporous film (or microporous membrane) technology takes center stage. Unlike woven or non-woven fabrics that rely on thickness or electrostatic charge, microporous film is engineered with pores so small—typically less than 0.1 microns—that they physically block bacteria and viruses while still allowing water vapor (sweat) to escape.

Decoding the Standards: What Type 4B, 5B, and 6B Really Mean

For farm managers and procurement officers, understanding the labels is key to selecting the right gear. The "B" suffix is the most important indicator for biological protection.

• Type 6B (EN 13034 + EN 14126): This is the workhorse for daily tasks. It offers protection against light liquid splashes (such as diluted disinfectants or accidental sprays) and hazardous dusts. The "B" confirms it meets EN 14126, the European standard for resistance to infective agents.
• Type 5B (EN ISO 13982-1 + EN 14126): Ideal for environments with heavy dry particle hazards, such as handling feather dust in poultry houses or moldy hay, while maintaining the biological barrier.
• Type 4B (EN 14605 + EN 14126): This is the heavy artillery for liquid saturation. It protects against heavy liquid spray (not just splashes). In a farming context, this is crucial during power-washing of contaminated barns, handling large volumes of blood during slaughter, or working in torrential rain of chemical disinfectants during a quarantine zone cleanup.

The "B" Factor: Certified Biological Resistance

The inclusion of EN 14126 certification is non-negotiable for pandemic prevention. This standard subjects the material to rigorous tests, including:

• ISO 16604: Resistance to penetration by blood-borne pathogens (using a bacteriophage simulant).
• ISO 22611: Resistance to contamination by biologically contaminated aerosols.
• ISO 22612: Resistance to penetration by contaminated solid particles.

A coverall bearing the Type 4B/5B/6B mark has proven it can stop viruses, bacteria, and fungi from reaching the skin, even under pressure and saturation.

The Tangible Benefits on the Farm

Why should a livestock operation invest in B-certified microporous film suits?

1. Breaking the Chain of Transmission: By preventing pathogen-laden liquids and dust from contacting clothing and skin, workers cease to be carriers between barns or farms.
2. Worker Safety and Comfort: Zoonotic diseases (like certain strains of avian flu) can jump from animals to humans. High-barrier suits protect the farmer's health. The breathable nature of microporous film reduces heat stress, meaning workers are more likely to wear them correctly for extended periods.
3. Economic Protection: In the event of a culling operation or quarantine, using certified suits (Type 3/4B) is often mandated by veterinary authorities to prevent the spread to neighboring properties. Having compliant gear on hand can accelerate response times and protect the regional industry.

For the modern livestock farmer, protecting the herd starts with protecting oneself. And that protection is increasingly found in the quiet efficiency of a B-certified, breathable, microporous film coverall.

Now, Hubei TDL Group (Hubei Orient & Ammex-Weida) Introduces Its Premium Type 4B/5B/6B Microporous Film Protective Coverall.

At Hubei TDL Group (Hubei Orient & Ammex-Weida) , we have engineered our Type 4B/5B/6B microporous film coveralls to meet the rigorous demands of modern livestock farming, from routine daily chores to full-scale pandemic response.

Our coveralls are constructed from a high-performance tri-laminate microporous film technology, combining a breathable membrane with durable non-woven backing. This isn't just a "one-size-fits-all" suit—it's a precision tool designed to keep farmworkers safe, comfortable, and compliant with the strictest biosecurity protocols.

But--Why To Choose Us?

1. Advanced Viral Barrier (The "B" You Can Trust)
Full EN 14126 (Type 4B/5B/6B) certification means our suits have been rigorously tested against the harshest biological threats. Whether facing ISO 16604 blood-borne pathogen penetration or ISO 22611 contaminated aerosol resistance, our coveralls provide a verified physical barrier against viruses as small as 0.1 microns. In the field, this translates to confidence—knowing that African Swine Fever, Avian Influenza, or bacterial contaminants are stopped at the suit's surface, not absorbed into the fabric.

2. Breathability That Beats the Heat
We understand that a pig barn in July or a poultry house at midday is unforgiving. Our microporous membrane features a unique "directional sweat management" system. The pores are engineered to be 10,000 times smaller than a water droplet (stopping liquids) but 500 times larger than a water vapor molecule (allowing sweat to escape). This results in a fabric that is hydrostatic-proof yet significantly cooler than traditional impermeable films. Workers stay drier, reducing fatigue and the risk of heat stress during those long, critical shifts.

3. Rugged Durability for Real-World Conditions
Farming is tough on gear. You're climbing gates, kneeling in wet bedding, and brushing against rough timber. Our suits feature:

• Reinforced Seam Construction: All seams are either taped or ultrasonically welded (depending on the Type 4B model) to prevent liquid and pathogen ingress through needle holes.
• Abrasion-Resistant Lamination: The microporous film is protected by a tough outer layer that resists tearing and snagging, so you can work without constantly worrying about suit failure.
  
• Elasticated Hood, Wrists, and Ankles: Designed for a snug fit over boots and gloves, creating a sealed environment that keeps contaminants out and comfort in.

Tailored Protection for Every Task

• Type 6B: Perfect for daily tasks like vaccinating herds, egg collection, or feed delivery where light splash and dust are the primary concerns. Lightweight and highly breathable for all-day wear.
• Type 5B: Ideal for feed mixing areas, poultry house cleanouts, or handling dusty bedding where fine particulate matter is prevalent.
• Type 4B: Our heavy-duty solution for outbreak response, power-washing contaminated barns, post-mortem examinations, or any task involving pressurized liquid saturation. Features fully taped seams for maximum liquid integrity.

Designed with the End-User in Mind

We didn't just design for the lab; we designed for the farmer. Our suits feature:

• Two-piece ergonomic hood design that fits comfortably over respirators or face masks without restricting vision.
• Double-welted front zipper with an adhesive storm flap to create a dust-tight and liquid-tight seal.
• Excellent mobility and tear resistance during squatting and kneeling.

Protect Your Herd. Protect Your Team. Protect Your Future.

Equip your farm with the Hubei TDL Group (Hubei Orient & Ammex-Weida). Contact us today for bulk pricing, custom branding options, or to schedule a sample trial. Because when it comes to biosecurity, you deserve a shield that works as hard as you do.