Salon Safety, Sanitation, and Infection Control

Introduction: Why This Chapter Is Critical for the Red Seal Exam

Infection control is not a mere administrative formality—it is the legal and ethical foundation of hairdressing practice. The Red Seal exam assesses your ability to apply sanitation principles according to Canadian national standards, particularly those of the Canadian Standards Association (CSA) and Health Canada. A candidate who masters this chapter demonstrates an understanding of the biological, chemical, and physical hazards inherent to the trade, as well as the precise protocols to neutralize them.

This chapter covers: regulatory definitions, levels of disinfection, step-by-step procedures, dilution calculations, equipment standards, and classic exam traps. Each section is designed to be directly applicable in test situations and daily practice.

Definitions and Fundamental Principles

Essential Terminology (to Know by Heart)

Term	Regulatory Definition (CSA Standard)	Practical Example
Cleaning	Physical removal of organic matter (dirt, sebum, blood) and debris. Does not necessarily eliminate micro-organisms.	Washing a comb with soapy water and a brush.
Disinfection	Process that eliminates or inactivates most pathogenic micro-organisms, except bacterial spores.	Soaking scissors in a disinfectant solution for the prescribed time.
Sterilization	Complete destruction of all forms of microbial life, including spores.	Autoclave (moist heat under pressure) for metal instruments.
Antiseptic	Chemical agent applied to skin or mucous membranes to reduce microbial flora.	70% isopropyl alcohol on intact skin before an extraction.
Cross-contamination	Transfer of micro-organisms from one surface, client, or instrument to another.	Using the same comb on two clients without cleaning it.
Intermediate-level disinfectant	Kills vegetative bacteria, mycobacteria, fungi, and enveloped viruses.	Quaternary ammonium (QUAT) solution at 2,000 ppm.
High-level disinfectant	Kills all microbial forms except bacterial spores.	2% glutaraldehyde (20-minute immersion).

Fundamental Principle: Cleaning ALWAYS precedes disinfection. A disinfectant cannot penetrate a layer of organic matter. This is the most frequent error in exams and in practice.

The Three Levels of Disinfection (According to Risk)

The Workplace Hazardous Materials Information System (WHMIS) and CSA standards classify instruments according to their use:

Risk Level	Type of Instrument	Example	Required Disinfection Level
Critical	Penetrates skin or mucous membranes	Needles, razor blades, comedone extractors	Sterilization (autoclave) or single-use
Semi-critical	Contact with mucous membranes or non-intact skin	Scissors, clippers, tweezers	High-level disinfection
Non-critical	Contact with intact skin only	Combs, brushes, capes	Intermediate-level disinfection

Golden Rule: Any instrument that has come into contact with blood or biological fluids is treated as critical, even if it is normally semi-critical. When in doubt, opt for the higher level.

Canadian Standards and National Regulations

Canadian Electrical Code, Part I (CE Code, C22.1)

Hair salons are subject to national electrical requirements. Key points for the exam:

Rule 8-200: Branch circuits for receptacles in salons must be protected by a ground fault circuit interrupter (GFCI) in areas where water is used (shampoo bowls, washing stations). Maximum distance: 1.5 metres from a water source.

Rule 26-700: Portable electrical appliances (hair dryers, curling irons) must comply with CSA certification or an equivalent recognized standard.

Rule 2-024: Electrical equipment must be used in accordance with its design. Never use an adapter or extension cord on a permanent basis.

Trap to Avoid: A fixed hood dryer does not require a GFCI if it is permanently wired (not plug-connected). But a flat iron plugged in near a shampoo bowl DOES.

CSA B149.1 — Natural Gas and Propane Code

Salons using gas water heaters or gas dryers (rare but existing) must comply with:

Clause 4.2.1: Adequate ventilation to prevent carbon monoxide accumulation.

Clause 6.3.1: Minimum clearance distance of 30 cm between any gas appliance and a combustible surface.

Clause 8.1.2: Mandatory annual inspection by a certified technician.

Note: Most salons do not have gas equipment. However, the exam may ask a question about ventilation requirements if a water heater is present in the washing room.

Health Canada Standards and WHMIS

WHMIS 2015 (aligned with the Globally Harmonized System): Every chemical product (hair dye, bleach, disinfectant) must have a Safety Data Sheet (SDS) accessible at all times in the salon.

Hazardous Products Regulations: Containers must have a label with hazard pictogram, hazard statement, and precautionary statements.

Canada Consumer Product Safety Act (CCPSA): Cosmetic products must not contain prohibited substances (e.g., lead in hair dyes).

Practical Requirement: The salon must have a documented WHMIS training program. The employer must train each employee before their first use of a hazardous product.

Cleaning and Disinfection Procedures (Step by Step)

Protocol for Metal Instruments (Scissors, Tweezers, Blades)

36.Pre-cleaning: Rinse the instrument in cold water (hot water coagulates blood proteins and fixes them). Use a soft-bristle brush with an enzymatic detergent.

37.Deep cleaning: Immerse in a warm (not hot) detergent solution for 5 minutes. Brush all surfaces, including hinges.

38.Rinsing: Clean running water for 30 seconds.

39.Drying: Dry completely with a clean cloth or air-dry. A damp instrument dilutes the disinfectant.

40.Disinfection: Immerse in a high-level disinfectant (e.g., 2% glutaraldehyde) for 20 minutes at room temperature (20 °C). Respect the exact time—no more, no less.

41.Final rinse: Rinse with sterile water or distilled water to remove toxic chemical residues.

42.Storage: In a closed, clean, dry container, or in a UV tray. Never store in an apron pocket.

Dilution Calculation: For a 10% QUAT solution (concentrate) requiring a final concentration of 2,000 ppm (0.2%):

Formula: C₁ × V₁ = C₂ × V₂

C₁ = 10% (concentrate concentration)

C₂ = 0.2% (final concentration)

V₂ = 1,000 mL (desired final volume)

V₁ = (C₂ × V₂) / C₁ = (0.2 × 1,000) / 10 = 20 mL of concentrate in 980 mL of water.

Trap: ppm (parts per million) conversion: 1% = 10,000 ppm. Therefore, 2,000 ppm = 0.2%.

Protocol for Non-Metal Instruments (Combs, Brushes)

51.Remove hair and debris with a fine-tooth comb.

52.Wash in warm soapy water (mild detergent), brushing between the teeth.

53.Rinse thoroughly.

54.Immerse in an intermediate-level disinfectant (QUAT at 2,000 ppm) for 10 minutes.

55.Rinse with clean water.

56.Air-dry on a clean drying rack.

Frequency: Between every client, without exception. Brushes must be disinfected daily even if they have not been used.

Management of Blood or Biological Fluid Spills

59.Evacuation: Move clients and unprotected staff away.

60.Protection: Wear disposable gloves (nitrile or latex) and protective eyewear.

61.Absorption: Use an absorbent product (granules or disposable cloth) to cover the spill.

62.Cleaning: Pick up debris with a disposable dustpan. Clean the area with a detergent.

63.Disinfection: Apply a diluted bleach solution at 1:10 (1 part bleach to 9 parts water)—equivalent to 5,000 ppm of free chlorine. Allow 10 minutes of contact time.

64.Disposal: Place all contaminated materials in a labelled biomedical waste bag.

65.Documentation: Complete an incident report.

Calculation Rule: To prepare 1 L of 1:10 bleach solution, mix 100 mL of bleach (5.25% concentration) with 900 mL of cold water. The solution must be prepared fresh daily—chlorine degrades quickly.

Personal Hygiene and Personal Protective Equipment (PPE)

Minimum Requirements for the Hairstylist

Item	Requirement	Replacement Frequency
Disposable gloves	Nitrile or latex, powder-free	Between each client (change immediately if torn)
Face mask	Surgical mask or N95 during services generating aerosols	Every 2 hours or between clients
Protective eyewear	Face shield or tight-fitting goggles during wet hair cutting	Clean with disinfectant after each use
Impermeable apron	Washable plastic or vinyl	Clean daily
Closed-toe shoes	Leather or vinyl, slip-resistant sole	Replace if worn

Golden Rule: Hands must be washed before and after each client, even when wearing gloves. Handwashing lasts a minimum of 20 seconds with warm water and antibacterial soap. Dry with a disposable towel.

Needle Stick or Cut Injuries

73.Immediate: Wash the wound with running water and soap for 5 minutes.

74.Disinfection: Apply an antiseptic solution (70% alcohol or povidone-iodine).

75.Dressing: Cover with a waterproof bandage.

76.Reporting: Report the incident to the supervisor and complete the injury form.

77.Medical follow-up: Consult a healthcare professional to assess the risk of infection (hepatitis B, HIV).

Important: Never squeeze the wound to make it bleed more. This increases the risk of contamination.

Salon Equipment: Standards and Maintenance

Dryers and Styling Irons

Handheld dryer: The air intake filter must be cleaned after each use to prevent hair and dust accumulation (fire hazard).

Curling/flat iron: Plates must be cleaned with a damp cloth after each client. Never immerse in water.

Electrical inspection: Inspect cords for cracks, exposed wires, or damaged plugs. Any defective appliance must be removed from service and labelled "OUT OF SERVICE."

Shampoo Bowls

Daily disinfection: Clean the bowl surface with an intermediate-level disinfectant.

Washing gloves: Use disposable gloves for each client.

Towels: Each client must receive a clean towel. Used towels are placed in a closed container and washed at a minimum of 60 °C with a disinfecting detergent.

Autoclave (If Used)

Standard cycle: 121 °C at 15 psi (103 kPa) for 15 minutes for wrapped instruments.

Biological test: Perform a weekly test with Geobacillus stearothermophilus spores to verify effectiveness.

Chemical indicator: Each package must have indicator tape that changes colour after the cycle.

Pressure Calculation: 1 atmosphere = 14.7 psi = 101.3 kPa. The standard autoclave operates at 15 psi above atmospheric pressure, approximately 2 absolute atmospheres.

Chemical Products: Storage, Handling, and Disposal

Storage Rules (CSA Z317.10 Standard)

97.Separation: Incompatible products (e.g., bleach and acids) must be stored separately.

98.Containers: Always in their original container with an intact label. Never transfer into food bottles.

99.Temperature: Store between 15 °C and 25 °C, away from direct sunlight.

100.Height: Hazardous products must be stored below eye level.

101.Ventilation: The storage area must have adequate ventilation (at least 6 air changes per hour).

Chemical Waste Disposal

Hair dyes and bleaches: Never pour down the sink. Use a hazardous waste collection container.

Aerosols: Puncture empty containers after fully emptying them. Recycle the metal.

Razor blades: Place in a rigid, puncture-resistant container labelled "SHARPS WASTE." Never dispose of in regular trash.

Safety Data Sheet (SDS) — Mandatory Elements

An SDS must contain 16 sections, including:

108.Product identification

109.Hazard identification (WHMIS pictograms)

110.Composition/information on ingredients

111.First aid measures

112.Fire-fighting measures

113.Accidental release measures

114.Handling and storage

115.Exposure controls / personal protection

Exam Trap: Section 8 (exposure controls) indicates occupational exposure limits (OELs)—for example, the OEL for ammonia is 25 ppm (8-hour time-weighted average). A question may ask which section to consult for recommended gloves.

Service-Specific Procedures

Hair Cutting

Before: Wash hands, put on gloves, prepare disinfected instruments.

During: Use a clean comb for each client. Never place instruments on a non-disinfected surface.

After: Sweep up hair, disinfect the floor and chair. Cut hair is biological waste—place it in a foot-pedal trash bin.

Colouring and Bleaching

Skin test: Perform a sensitivity test 48 hours before colouring (patch test).

Protection: Wear nitrile gloves (latex gloves do not protect against colouring chemicals).

Ventilation: Use an extraction system or work in a ventilated area. Ammonia vapours must be exhausted.

Spills: Neutralize bleach spills with baking soda before cleaning.

Extractions (Comedones)

Mandatory sterilization: The extractor must be autoclave-sterilized before each use.

Antiseptic: Clean the skin with an antiseptic before and after the extraction.

Gloves: Disposable gloves are mandatory. Bare hands are prohibited.

Disposal: Extracted material is biological waste—dispose of in a sealed container.

Calculations and Conversions (Quick Review)

Concentration Conversions

Unit	Equivalent
1%	10,000 ppm
0.5%	5,000 ppm
0.2%	2,000 ppm
0.1%	1,000 ppm

Dilution — General Formula

C₁ × V₁ = C₂ × V₂

Example: Prepare 500 mL of a 0.5% disinfectant solution from a 5% concentrate.

V₁ = (0.5 × 500) / 5 = 50 mL of concentrate + 450 mL of water.

Trap: Always add the concentrate to the water, never the reverse. This prevents splashing and exothermic reactions.

Contact Times (Critical Factor)

Disinfectant	Concentration	Contact Time	Level
QUAT	2,000 ppm	10 min	Intermediate
Glutaraldehyde	2%	20 min	High
Bleach	1:10 (5,000 ppm)	10 min	Intermediate
Isopropyl alcohol	70%	5 min	Intermediate (surface)

Rule: Contact time begins when the instrument is completely immersed. An instrument that floats is not being disinfected.

Traps to Avoid

147.Confusing cleaning and disinfection: Cleaning does not kill microbes. Disinfection only works on a clean surface.

148.Using 90% alcohol instead of 70%: 70% alcohol is more effective because water facilitates protein denaturation. 90% alcohol evaporates too quickly.

149.Forgetting to rinse after disinfection: Chemical residues can cause contact dermatitis in clients.

150.Storing disinfected instruments in an open drawer: They become recontaminated. Use a closed container.

151.Neglecting non-critical surfaces: Door handles, light switches, phones, and keyboards are major vectors of cross-contamination.

152.Reusing a towel for two clients: Even if it looks clean, it is contaminated.

153.Ignoring disinfectant expiry dates: An expired disinfectant loses its effectiveness.

154.Wearing hand jewellery: Rings and bracelets prevent effective handwashing and can tear gloves.

155.Using an intermediate-level disinfectant for a critical instrument: A comedone extractor requires sterilization, not simple disinfection.

156.Failing to document incidents: In the event of an injury, documentation is mandatory for regulatory compliance.

Summary

Cleaning always precedes disinfection—this is the non-negotiable rule.

Three risk levels: critical (sterilization), semi-critical (high-level disinfection), non-critical (intermediate-level disinfection).

National standards: Canadian Electrical Code (C22.1, Rule 8-200 for GFCI), CSA B149.1 for gas, WHMIS 2015 for chemicals.

Dilution calculations: C₁ × V₁ = C₂ × V₂. 1% = 10,000 ppm.

Contact times: QUAT 10 min, glutaraldehyde 20 min, bleach 1:10 for 10 min.

Mandatory PPE: Nitrile gloves, mask, eyewear, impermeable apron.

Handwashing: Minimum 20 seconds, before and after each client.

Biological waste: Sealed and labelled containers. Blades in a rigid container.

Autoclave: 121 °C, 15 psi, 15 minutes. Weekly biological testing.

SDS: Accessible at all times. Section 8 for recommended PPE.

Self-Assessment Questions (Red Seal Style)

171.A client presents a bleeding cut during a haircut. What is the hairstylist's first action?

a) Continue the cut quickly

b) Stop, put on gloves, apply pressure with a sterile compress

c) Disinfect the scissors

d) Call the supervisor

176.What is the concentration in ppm of a 0.25% QUAT solution?

a) 250 ppm

b) 2,500 ppm

c) 25,000 ppm

d) 25 ppm

181.A semi-critical instrument has come into contact with blood. What treatment is required?

a) Intermediate-level disinfection

b) High-level disinfection

c) Sterilization

d) Simple cleaning

186.According to the Canadian Electrical Code, what protection is required for receptacles near a shampoo bowl?

a) Standard circuit breaker

b) GFCI

c) Slow-blow fuse

d) No special protection

191.What is the minimum duration for handwashing with soap?

a) 5 seconds

b) 10 seconds

c) 20 seconds

d) 60 seconds

Answers: 1-b, 2-b (0.25% × 10,000 = 2,500 ppm), 3-c (blood contact = critical), 4-b, 5-c.

This chapter conforms to current Canadian national standards. For the exam, memorize the exact numbers, contact times, and the hierarchy of disinfection levels. Good luck with your preparation.

Salon Safety, Sanitation, and Infection Control