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Find information about home testing, household contaminates and concerns, and remediation options put together by our experts and scientists for your use. Read more about home health, water safety, environmental testing, mold awareness, and basic household maintenance needs

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<a href="/pages/category-water-testing" target="_blank" title="Category: Water Quality & Bacteria Testing">Water Quality & Bacteria Testing</a>

Water Quality & Bacteria Testing

<a href="/pages/category-mold-testing" target="_blank" title="Category: Mold & Indoor Air Quality">Mold & Indoor Air Quality</a>

Mold & Indoor Air Quality

<a href="/pages/category-sanitation" target="_blank" title="Category: Sanitation, Home Hygiene, & Appliance Testing">Sanitation, Hygiene & Appliance Testing</a>

Sanitation, Hygiene & Appliance Testing

<a href="/pages/category-algae" target="_blank" title="Category: Blue-Green Algae & Recreational Water Safety">Blue-Green Algae & Water Safety</a>

Blue-Green Algae & Water Safety

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Full Home Safety - New & Older Homes

<a href="/pages/category-lead" target="_blank" title="Category: Lead & Heavy Metals">Lead & Heavy Metals in Water & Paint</a>

Lead & Heavy Metals in Water & Paint

Browse Articles: Water Testing - Bacteria & Mold

How to Tell if Your Well Water Is Making You Sick

Top Ways to Tell If Your Water Has Bacteria in It (And When to Test)

Signs Your Private Well Has Been Contaminated After a Storm

How to Test Water for Bacteria: What Works and What Doesn’t

Why Seasonal Homes Are at High Risk for Bacteria in Water

How Old Plumbing Contributes to Bacteria in Water

Reasons Your Fridge Water Tastes Weird (And What It Means for Bacteria)

Does Hard Water Cause Bacteria Growth? The Surprising Truth...

How Often Should You Replace Your Water Filter to Avoid Bacterial Growth?

How to Keep Your RV or Camper Water Tank Free of Bacteria

Are Whole-House Water Filters Actually Useful?

How Often Should You Test Your Home’s Water for Bacteria?

What To Do If Your Water Test Shows Coliform Contamination

The Complete Guide to Testing Your Home’s Water: What to Check and When to Act

Top Signs Your House Has Mold in the Water System

How to Properly Flush Your Refrigerator Water Line to Reduce Bacteria and Sediment

Cloudy, Yellow, or Rusty Water? What Each Color Change Tells You About Your Water Quality

How to Clean and Sanitize Your Faucets, Aerators, and Showerheads to Improve Water Quality

Do Water Filters Make Water Safer? The Hidden Contaminants Filters Cannot Remove

10 Signs You Need to Test Your Water at Home Even If It Looks Clear

Inside Modern Water Treatment: How Municipal Systems Use Chemistry and Microbiology to Keep Water Safe

How to Shock, Flush, and Sanitize Your Home’s Plumbing System to Improve Water Quality

How to Clean and Sanitize an Under-Sink Reverse Osmosis (RO) System

Suggested Water Tests:

RV & Marine Maintenance Water Test Kit for detecting E. coli, coliform bacteria, and mold in fresh water systems

RV Water Test Kit for Bacteria, Mold, & Microbes

$27.99
$27.99
Water Test for Travel lab-grade DIY water quality test kit made in USA with fast results for common contaminants

Travel Water Test Kit

$37.99
$37.99
Water Bacteria Test Kit for E. coli, coliform bacteria, and mold testing in well water and drinking water

Water Bacteria Test Kit

From $15.99
From $15.99
Total Drinking Water Test Kit for tap and well water, at-home test for lead, bacteria, mold, pH, and hardness

At-Home Total Water Quality Test Kit

$39.99
$39.99
Essential Home Inspector Kit for DIY mold, bacteria, and fungus testing on surfaces and water, made in USA

Essential Home Inspector Kit

From $94.49
From $94.49
Lead in Water Test Kit for tap water with 5-minute lab-grade DIY lead detection

5-Minute Lead Water Test

$27.99
$27.99
Pool & Hot Tub Water Test Kit for E. coli, coliform bacteria, and mold, lab-grade DIY, made in USA

Pool, Spa, & Hot Tub Water Bacteria Test Kit

$24.99
$24.99

Browse Articles: Indoor Air Quality & Mold Testing

Top 10 Household Molds and What They Mean for Your Home’s Air Quality

How to Tell If Mold Is Toxic: Signs of Stachybotrys, Chaetomium, and Aspergillus

The Most Dangerous Molds Found in Homes and How to Identify Them

A Complete Guide to Testing Your Home for Mold (Air, Surface, HVAC)

When Should You Test for Mold? Key Signs You Should Never Ignore

What Stachybotrys (“Black Mold”) Actually Looks Like and How to Confirm It

Understanding Aspergillus and Penicillium: Common but Often Misunderstood Molds

How to Clean Mold Safely Without Making the Problem Worse

HVAC Mold Growth: How to Test and Prevent Mold in Air Ducts

Mold in Bathrooms: Why It Happens and How to Know If It’s Harmful

Water Damage Mold Timeline: What Grows at 24 Hours, 48 Hours, 7 Days

How to Tell If You Need Professional Mold Remediation

How to Keep Your Home’s Air Clean: A Preventative Guide for Mold-Sensitive Homes

Is It Mold or Is It Bacteria? How to Tell What’s Growing in Your Home

Best At-Home Mold Test Methods (What Each One Detects, and Which Is Best for Your Situation)

Hidden Moisture Sources Most Homeowners Miss

The Science Behind Mold Testing: How Professional-Grade Methods Work and Why Accuracy Matters

Understanding Mycotoxins: What Scientists Know About Toxic Mold Compounds and Exposure Risks

Suggested Mold Tests:

Detekt Home Mold Test Kit 6pc with lab-grade DIY home testing components for mold, bacteria, and fungus detection

Mold & Indoor Air Quality Test Kit 6 Locations

$39.99
$39.99

Browse Articles: Lead Water Testing & Heavy Metals

10 Signs Your Drinking Water May Contain Lead

How to Test Your Water for Lead (Tap, Well, Filtered, Fridge)

Why Lead in Water Has No Taste or Smell (And Why Testing Is Essential)

How Lead Gets Into Household Water (Pipes, Fixtures, Solder, Brass)

The Truth About Toxic Lead in Older Homes

How to Test Your Home for Lead Dust on Surfaces

Lead Exposure in Children: Key Symptoms and When to Test

Lead in School Drinking Fountains: Why It’s Still a Problem

How to Flush Your Plumbing to Reduce Lead Exposure

How Reliable Are At-Home Lead Tests? What They Can and Cannot Detect

EPA Updates Lead Regulatory Guidelines

Lead in Well Water: Causes, Risks, and Testing Schedule

How to Reduce Lead at Home Without Replacing All Your Plumbing

What to Do If Your Water Test Shows Elevated Lead Levels

The Chemistry of Lead Leaching: Why Pipes Corrode and How Water Chemistry Influences Exposure Risk

How Scientists Test for Lead in Water: EPA Standards, Detection Limits, and Certified Methods

How to Interpret Lead Test Kit Results (Screening vs. Laboratory)

Suggested Lead Tests:

Total Toxic Lead Test Kit with 1 water test and 5 lead swabs for tap water and painted surfaces

Total Toxic Lead Test Kit (1 water test + 5 swabs)

$29.99
$29.99
Total Drinking Water Test Kit for tap and well water, at-home test for lead, bacteria, mold, pH, and hardness

At-Home Total Water Quality Test Kit

$39.99
$39.99
Lead in Water Test Kit for tap water with 5-minute lab-grade DIY lead detection

5-Minute Lead Water Test

$27.99
$27.99
Essential Home Inspector Kit for DIY mold, bacteria, and fungus testing on surfaces and water, made in USA

Essential Home Inspector Kit

From $94.49
From $94.49

Browse Articles: Sanitation Testing - Mold & Bacteria

The Household Sanitation Checklist After Flooding or Sewage Backup

Signs Your Private Well Has Been Contaminated After a Storm

A Step-by-Step Guide to Sanitizing a Home After Septic Backup

How to Determine if Your Water System Needs Sanitizing

How to Tell if Your Well Water Is Making You Sick

Signs Your Washing Machine Is Harboring Mold or Bacteria

How to Tell If Your Dishwasher Is Making Your Family Sick

Are Your Food Preparation Surfaces, Appliances, and Tools Actually Clean?

How to Properly Clean and Disinfect Your Kitchen Sink Drain

A Step-by-Step Guide to Identifying When Home Appliances Need Deep Cleaning to Prevent Illness

How to Sanitize a Refrigerator After Water or Food Contamination

How to Sanitize a Home After Rodents, Pets, or Wildlife Encounters

Sanitizing Baby Bottles, Water Used in Formula, and Kitchen Areas

Home Still Smells Bad After Cleaning Up Sewage or Flood Damage

Pet Ringworm Infection - Make Sure You Cleaned Your Home Properly

Is Your Bathroom Making You Sick?

The Science of Biofilm: Why It Forms on Household Surfaces and How Professionals Break It Down

How to Interpret your Detekt Home Bacteria or Mold Test

Biofilm Hotspots in the Home: Where Microbial Communities Persist and Why They Matter

Suggested Sanitation Tests:

Water Bacteria Test Kit for E. coli, coliform bacteria, and mold testing in well water and drinking water

Water Bacteria Test Kit

From $15.99
From $15.99
Home & Kitchen Sanitation Test Kit for detecting coliforms, Salmonella, and mold on counters, cutting boards, and appliances

Kitchen Surface Bacteria Kit

From $29.99
From $29.99

Browse Articles: Radon Testing - Toxic Radon Gas

What Is Radon Gas and Why Is It Dangerous? A Beginner’s Guide

How to Test Your Home for Radon (Short-Term and Long-Term Methods)

Radon Levels by Day, Season, and Weather: When to Test for Accuracy

Health Symptoms Linked to Radon Exposure

I Didn't Think My Region Had Radon...

What to Do If Your Radon Test Comes Back High

Why Some Homes Have Higher Radon Than Their Neighbors

Does Radon Affect Newer Homes?

Do Air Purifiers Remove Radon? (What Actually Works)

Suggested Radon Tests:

Essential Home Inspector Kit for DIY mold, bacteria, and fungus testing on surfaces and water, made in USA

Essential Home Inspector Kit

From $94.49
From $94.49
Toxic, Odorless Radon Gas home test kit with certified lab analysis and 2-7 day results

Radon Short Term Test Kit

$32.99
$32.99

Browse Articles: Blue-Green Algae Water Testing

What Is Blue-Green Algae? The Complete Homeowner’s Guide to Toxic Cyanobacteria

Top Signs a Lake, River, or Water Source Has Blue-Green Algae (Even If It Looks Safe)

Is Blue-Green Algae Harmful? Symptoms in Humans, Pets, and Wildlife

How to Test Water for Blue-Green Algae at Home: What Works and What Doesn’t

The Biology of Cyanobacteria: Why Blooms Form and How Toxins Develop Under Certain Conditions

How Blue-Green Algae Affects Livestock: Symptoms, Emergency Steps, and Prevention

Why Dogs Are at High Risk for Blue-Green Algae Poisoning — And How to Prevent It

Blue-Green Algae Risks in Austin, TX: What Residents Should Know Before Swimming or Letting Pets Near the Water

Why the Southwest Has Increasing Blue-Green Algae Blooms

Understanding Blue-Green Algae in Utah and Zion National Park: Safety Tips for Hikers and Campers

Can Blue-Green Algae Make Your Tap Water Unsafe? (Municipal vs. Well Water Explained)

The Health Effects of Cyanotoxins: Microcystin, Anatoxin-A, and BMAA — What You Need to Know

How to Tell if Your Pet Was Exposed to Toxic Algae and What to Do Immediately

How to Reduce Blue-Green Algae Risk on Your Property: Shoreline, Yard, and Water Management Tips

How Scientists Test for Cyanotoxins: Inside the Methods Used by EPA and Environmental Labs

What to Do if Your Pond, Tank, or Trough Has Blue-Green Algae

Why Blue-Green Algae Blooms Are Increasing: Climate, Heat, Fertilizer Runoff, and Drought Explained

Can Blue-Green Algae Get Into Home Water Systems? What Rural and Well Owners Need to Know

Suggested Blue-Green Algae Tests:

Blue-Green Algae Toxin Test

Blue-Green Algae Toxin Test

From $22.99
From $22.99

Browse Articles: Full Home Testing

The First Water Safety Checks Every New Homeowner Should Do

Top Hidden Air Quality Issues New Homeowners Discover in Their First Year

How to Create a Home Health Checklist for Your New Property

Is Your New Home’s Water Safe? Signs to Test Immediately After Moving In

Why You Should Test for Radon Even If the Seller Provided Results

New Homeowner’s Guide to Safe Drinking Water: What Every Kitchen Needs

Top Maintenance Habits New Homeowners Must Learn to Avoid Mold and Water Damage

How to Inspect for Mold Before and After Move-In (What Most People Miss)

Why Older Homes Have Higher Risk of Lead, Mold, and Bacteria

Aging Plumbing 101: Top Signs Your Old Pipes Are Affecting Water Qualit

How to Test an Older Home for Lead in Water, Paint, and Household Dust

How Old Ventilation and HVAC Systems Contribute to Poor Indoor Air Quality

Why Older Homes Should Be Tested for Radon More Frequently

The Homeowner’s Guide to Preventing Mold and Water Damage in Aging Structures

How to Clean and Restore Faucets, Aerators, and Drains in Older Homes

The Microbiology of Aging Plumbing: Why Older Pipes Harbor More Bacteria and Metals

10 Things to Check in Your Home After Living There for 10 Years

The Science of Home Air Quality: What Environmental Experts Look for in New Homes