Breathable cannula biological evidence cotton swab

The TECS1501 Ventilated Tube Swab is designed for contamination-free collection and long-term preservation of biological evidence, including blood, saliva, and semen stains, with a unique ventilated tube to prevent moisture buildup and degradation.

Description

The TECS1501 swab is produced under cleanroom conditions to avoid exogenous contamination. The cotton tip is suspended within a transparent tube, preventing adhesion to packaging surfaces and minimizing contamination. The tube features a special air-permeable filter at the bottom, allowing ventilation while blocking small airborne particles, preventing mold growth and maintaining sample quality for long-term storage. The breakable shaft enables safe separation and transfer of the swab tip for laboratory analysis. Each swab is made of pure cotton to avoid interference with DNA testing and is individually packaged for safe transport.

Key Features:

  • Produced under strict cleanroom conditions to avoid contamination

  • Pure cotton swab tip safe for DNA testing

  • Breakable shaft for convenient sample separation and storage

  • Transparent tube allows visual inspection of collected evidence

  • Ventilated tube design ensures airflow, prevents mold, and blocks airborne particles

  • Suspended swab tip prevents adhesion and contamination

Application Range:

  • Forensic collection of blood, saliva, semen, and other biological evidence

  • Field DNA sample preservation and transport

  • Laboratory DNA extraction and analysis

  • Long-term storage of trace biological evidence

Specifications / Parameters:

  • Packaging: 20 swabs per pack

  • Swab material: 100% pure cotton tip, ABS shaft

  • Tube material: Transparent PP

  • Tube features: Ventilated bottom with air-permeable filter

  • Breakable shaft for safe separation of swab tip

  • Usage: Moisten swab with 2–3 drops ultrapure water for dry samples; mark swab after collection

  • Protective environment: Ventilated tube prevents moisture accumulation and contamination

Usage Instructions:

  1. Remove the tube cap and moisten swab tip if collecting dry evidence.

  2. Swab the target area with moderate pressure, avoiding contact with unrelated surfaces.

  3. Mark the swab tip to indicate the sampled area.

  4. Replace the tube cap and record sample information.

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