南非采购需求：最佳产品、高评分产品、推荐产品、热门产品、必备产品、顾客最爱

I'm currently exploring suppliers for specialized equipment in the field of aerosol measurement and control. Specifically, I'm looking for a reliable source for aerosol photometers to accurately analyze aerosol concentrations and properties. Additionally, I need an efficient aerosol generator that can produce a consistent aerosol stream for testing purposes. Furthermore, a high-quality airflow hood is essential to ensure safe and effective operation during experiments. I would appreciate detailed specifications and pricing information for these items, including any available models and their features. Please also let me know about lead times, warranty options, and any after-sales support your company offers. Your prompt response would be greatly appreciated as I aim to make a decision soon.