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Pure n Natural Blog

David Allen

David Allen is a Senior Technical Specialist at Pure n Natural Systems with over 15 years of experience in air and water purification engineering. Having worked alongside HVAC contractors, facility managers, and industrial clients, he brings a practical, field-tested perspective on how purification systems perform in demanding real-world environments. Specializing in commercial smoke eaters, HEPA and UV air purifiers, and advanced water treatment, David is known for his ability to translate system specifications into actionable solutions that meet strict compliance standards. His goal: to help businesses choose the right equipment the first time saving money, reducing downtime, and ensuring healthier spaces for employees and customers.

Recent Posts

How Often to Replace Air & Water Filters: Recommended Schedules

  • 07-October-2025
  • published by: David Allen

Understanding how often to change your air or water filters helps protect your health, improve performance, and lower long-term costs. Regular replacement keeps systems running efficiently and prevents bacteria, dust, and other contaminants from building up.

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Is Poor Air Quality Costing Your Business? The Ultimate Guide to Commercial Smoke Eaters

  • 02-October-2025
  • published by: David Allen

In today's competitive market, customer experience is everything. For restaurants, bars, and entertainment venues, that experience extends beyond just great service and products it includes the very air your customers and staff breathe. Lingering smoke, unpleasant odors, and airborne particles...

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Exploring Bottleless Water Dispensers: Aquabar II Deluxe POU Product Review

  • 28-May-2019
  • published by: David Allen

There’s a new look to bottleless water dispensers!

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How to Lower Humidity in Grow Room Set Up

  • 13-February-2019
  • published by: David Allen

Ask any experienced grower and they’ll tell you the most important factor in growing top-quality cannabis flowers is climate control. Made up of temperature and humidity, climate is the single greatest variable affecting density, potency, and overall cannabis yields. In the past, we’ve discussed ...

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Best Humidifier for Grow Room Setup - 2025 Updated

  • 06-February-2019
  • published by: David Allen

Whether starting from seedlings or clones, the biggest thing affecting a young cannabis plant’s growth is the room’s climate. In the first couple of weeks, plants need steady temperatures between 70 and 80-degrees Fahrenheit with Relative Humidity (RH) around 65-70%. For most, getting humidity and...

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What's the Best Office Water Cooler?

  • 05-September-2018
  • published by: David Allen

The water cooler is the iconic gathering place for office workers. It's a place for chatting about the latest sports game or viral video, along with being a source of healthy hydration, instant food and more.

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Drinking Tap Water: Is It Safe?

  • 25-July-2018
  • published by: David Allen

Despite the modern standards of safety and cleanliness that we enjoy in many aspects of the world today, there is no guarantee the water from your tap is safe or healthy. Drinking tap water can expose you to harmful contaminants like perfluorinated chemicals (PFCs), lead, bacteria, viruses and more.

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6 Reasons to Buy a Bottleless Water Cooler Dispenser

  • 07-June-2018
  • published by: David Allen

Maybe the water cooler with the replacement tanks works well enough for your business. Maybe filling your fridge with expensive cases of water bottles suits you fine. But no matter what kind of business you operate, improving your bottom line is probably always appealing. Installing a bottleless...

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The Only Bottleless Water Cooler Comparison Guide You Need

  • 30-May-2018
  • published by: David Allen

Everyone needs fresh, clean water to live. That means reliable access to safe and pure H2O at home and at work. If you're in almost any type of business, you also need a convenient and reliable way to deliver water to your employees and customers.

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What to Budget for a Commercial Air Cleaner

  • 16-March-2018
  • published by: David Allen

Commercial air purifiers — or air cleaners, as they are also called — come in a variety of sizes and with different amenities. This appliance will help keep your indoor environment free of airborne pollutants, particles and allergens. Because you're a business owner or manager, you want to know how...

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