Anaerobic Jar System NAJS-204 is an oxygen-free cultivation system designed to grow obligate anaerobes and microaerophilic organisms under controlled laboratory conditions. It supports microbial identification, sterility testing, and reproducible experimentation.
This system is used when microorganisms require strict oxygen-free environments for accurate growth and testing.
Ensures accurate anaerobic microbial cultivation
Improves accuracy in contamination detection
Supports ISO and GMP-compliant testing
Enables reproducible laboratory results
The system operates using a sealed chamber and gas-generating sachets:
Oxygen is absorbed inside the jar
Carbon dioxide is released to create anaerobic conditions
Indicator strips confirm oxygen removal
The jar is incubated for microbial growth
Result: Stable and controlled anaerobic environment
Maintains oxygen-free microbial conditions
Supports batch processing (16–18 plates)
Compatible with standard incubators
Easy operation with minimal setup
Reusable system for laboratory workflows
Anaerobic or microaerophilic cultivation is required
High batch capacity is needed
Routine microbiology testing is performed
Incubator-compatible systems are preferred
Continuous anaerobic work is required → Use anaerobic chamber
Large-scale production is needed → Use bioreactor
Automated environmental control is required → Use advanced systems
Anaerobic Jar → Batch microbial cultivation
Anaerobic Chamber → Continuous oxygen-free workflow
CO₂ Incubator → Not fully anaerobic
Quick Insight:
Jar = Batch use | Chamber = Continuous use
Model: NAJS-204
Capacity: 16–18 Petri plates
Method: Gas sachets / chemical system
Material: Polycarbonate / Stainless steel
Power: Not required
Compatibility: Incubator-compatible
Oxygen Removal: Gas-generating sachets
Indicator: Anaerobic indicator strips
Dimensions: ~280 × 280 × 330 mm
Weight: ~6–7 kg
Incubation: Standard laboratory incubators
1. What is an anaerobic jar system used for?
It is used to cultivate oxygen-sensitive microorganisms under controlled anaerobic conditions.
2. How does Anaerobic Jar System NAJS-204 remove oxygen?
Gas sachets absorb oxygen and release CO₂ inside a sealed chamber.
3. How long do anaerobic conditions last?
Typically up to 72 hours depending on the method used.
4. Can it be used in an incubator?
Yes, it is fully compatible with standard laboratory incubators.
5. How are anaerobic conditions verified?
Indicator strips change color to confirm oxygen removal.
6. Is the system reusable?
Yes, the jar is reusable; consumables must be replaced after each use.
Pharmaceutical microbial testing
Clinical pathogen detection
Food safety analysis
Environmental microbiology research
GMP (Good Manufacturing Practice)
ISO 11133 (culture media)
ISO 7218 (microbiology testing)
Laboratory quality control protocols
Anaerobic Systems
Anaerobic Jar System NAJS-203
Anaerobic Jar System NAJS-202
Guide to Anaerobic Microbial Cultivation
Anaerobic Culture Techniques
Anaerobic Jar System NAJS-204 accommodates up to 24 Petri dishes (90–100 mm) arranged in three stacks of eight dishes each. It establishes anaerobic conditions within 2 to 4 hours using gas generation systems. Constructed from transparent, impact-resistant PMMA and equipped with an O-ring seal and stainless steel clamp, it ensures excellent airtight performance and allows continuous visual monitoring of cultures.
