
Bair Hugger Cage Door Adapter (Veterinary Patient Warming Pass-Through)
Veterinary patient warming cage door adapter. Creates a sealed pass-through in recovery cage doors so a 3M Bair Hugger hose reaches a 3M warming blanket or gown on the patient inside the cage with the door closed. Fits Shor-Line and standard stainless steel cage systems.
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Specifications
Compatibility
- 3M Bair Hugger Model 675
- Shor-Line stainless steel cage systems
- Standard veterinary recovery cage doors
The Problem
Anesthetized patients lose body heat rapidly, and small dogs and cats are especially vulnerable due to their high surface-area-to-body-weight ratio. The 2020 AAHA Anesthesia and Monitoring Guidelines recommend active warming for dogs under anesthesia longer than 20 minutes. For the clinical background, see our post-operative hypothermia guide.
Forced-air warming systems like the 3M Bair Hugger are standard equipment in veterinary clinics. But routing the warming hose to a blanket inside a recovery cage creates a problem no manufacturer has solved: the hose either gets threaded through the cage bars (kinking it and losing heat to the room), gets pinched by the cage door (reducing airflow), or requires the door to stay partially open, creating an escape risk for groggy, post-anesthetic patients.
Clinics improvise with tape, towels, and propped-open doors. None of these are reliable, repeatable, or sanitary.
The Solution
The VetBog Cage Passthrough Adapter creates a sealed port in your veterinary recovery cage door for the Bair Hugger hose. The adapter seats into the ventilation slot of standard stainless steel cage doors, the hose passes through it to a 3M warming blanket or gown on the patient inside the cage, and the cage door stays fully closed and latched. The manufacturer’s instructions say not to treat with the hose alone, to attach it to a 3M warming blanket or gown, and not to let the hose contact the patient. The adapter keeps that setup intact on the cage side of the door and does not change how the unit is meant to be used. See our Bair Hugger Model 675 setup guide for the hose and blanket connection.
Compatible with the 3M Bair Hugger Model 675 hose, Shor-Line cage systems, and standard stainless steel recovery cage doors.
Different clinics call it different things: a Bair Hugger cage attachment, a kennel warming adapter, a cage door port. Whatever the name, it does one job, and it does it without tape or a propped-open door.
Install once. Leave permanently mounted. Connect the hose when you need to warm a patient, disconnect when you don’t.
Need to warm patients in floor-to-ceiling cage runs? Add the Cage Runs Extension for modular coverage across standard cages and floor-to-ceiling runs.
What’s in the Box
- 1× Cage Passthrough Adapter (PETG)
Installation
- Position adapter against the cage door ventilation slot
- Connect Bair Hugger hose to adapter inlet
- Wrap 2 layers of vet wrap around the hose-to-adapter connection to seal any small air gaps
- Connect the cage-side hose end to the 3M warming blanket or gown on the patient and close the door
Tip: Two layers of standard vet wrap at the hose connection point seals any small air gaps so the warm air reaches the blanket, not the room. It is the technique we use in our own clinic.
Care & Cleaning
Wipe with isopropyl alcohol as needed. Not autoclave-safe. PETG is resistant to most clinical cleaning solutions.
Accessory only. Not affiliated with or endorsed by 3M or the Bair Hugger® brand. “Bair Hugger” is a registered trademark of 3M Company. “Shor-Line” is a trademark of Shor-Line / Schroer Manufacturing.
Frequently Asked Questions
Does this Bair Hugger cage adapter fit the Model 675?
Yes. It is sized for the 3M Bair Hugger Model 675 hose, the unit it has been fitted and used with. Other Bair Hugger models have not been verified, so we do not list them as compatible. If you run a different unit, contact us with the model and we will tell you what we know.
What cages and kennel doors does the adapter work with?
It seats into the ventilation slot of standard stainless steel veterinary cage and kennel doors, including Shor-Line cage systems. If your recovery cages have the typical horizontal slot venting, the passthrough fits.
Do I still need a warming blanket inside the cage?
Yes. The adapter passes the Bair Hugger hose through the closed cage door, and the hose then connects to a 3M warming blanket or gown on the patient inside the cage. The manufacturer's instructions say not to treat with the hose alone and not to let the hose contact the patient, and the adapter does not change that. It is the door pass-through, not the blanket.
Can I leave the cage door attachment installed permanently?
Yes. Install it once and leave it mounted. Connect the Bair Hugger hose when you need to warm a patient and disconnect when you do not. The cage door still closes and latches fully with the adapter in place.
How do I warm a large dog in a floor-to-ceiling run?
Run gates sit farther from the patient than compact cage doors. Add the Cage Runs Extension, which connects onto this base adapter to bridge the extra distance through 78-inch floor-to-ceiling kennel runs.
What colors does the cage passthrough come in?
Black, White, and Blue. Custom colors are available with a minimum order of four units.
How do I clean it, and is it autoclave safe?
Wipe it down with isopropyl alcohol as needed. The PETG is resistant to most clinical cleaning solutions. It is not autoclave safe, so do not heat sterilize it.
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